SAS-Base认证考试(70真题+答案详解)
SASBase认证考试—70题（61-70）
SASBase认证考试—70题（61-70）SAS Base认证考试—70题(61-70)Q 61Consider the data step:data WORK.TEST;infile 'c:\class1.csv' dsd;input Name Sex Age Height Weight;if Age NE 16 and Age NE 15 then Group=1;else Group=2;run;Which statement produces a functionally equivalent result for assigning Group a value?A. if Age not in(15,16) then Group=1; else Group=2;B. if (Age NE 16) or (Age NE 15) then Group=1; else Group=2;C. where Age not between 15 and 16 then Group=1; else Group=2;D. both A or C will work.答案：A本题知识点：IF语句、IN的使用参考第17题。
Q 62The following SAS program is submitted:<_insert_ods_code_>proc means data=SASUSER.SHOES;where Product in ('Sandal' , 'Slipper' , 'Boot');run;<_insert_ods_code_>Which ODS statements, inserted in the two locations above,create a report stored in an html file?A. ods html open='sales.html';ods html close;B. ods file='sales.html' / html;ods file close;C. ods html file='sales.html';ods html close;D. ods file html='sales.html';ods file close;答案：C本题知识点：PROC COTENTS过程ODS的主要输出目标：LISTING、RESULTS、OUTPUT、HTML、CSVALL、RTF、PDF、其他。
SAS~base~考试必备~70真题(附答案解析)
1.The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set WORK.SALARY is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within Department?A. GenderB. DepartmentC. Gender DepartmentD. Department GenderAnswer: A-------------------------------------2.Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final $13 $25 $14 $27 .2 John MAR Current $26 $17 $29 $11 $233 Tina FEB Final $15 $18 $12 $13 .4 Tina MAR Current $29 $14 $19 $27 $20Which SAS program correctly produces the desired output?A.data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B.data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C.data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input Name $ Month $ @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D.data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;Answer: C-------------------------------------3.The Excel workbook REGIONS.XLS contains the following four worksheets:EASTWESTNORTHSOUTHThe following program is submitted:libname MYXLS 'regions.xls';Which PROC PRINT step correctly displays the NORTH worksheet?A. proc print data=MYXLS.NORTH;run;B. proc print data=MYXLS.NORTH$;run;C. proc print data=MYXLS.'NORTH'e;run;D. proc print data=MYXLS.'NORTH$'n;run;Answer: D-------------------------------------4.The following SAS program is submitted:data WORK.DATE_INFO;Day="01" ;Yr=1960 ;X=mdy(Day,01,Yr) ;run;What is the value of the variable X?A. the numeric value 0B. the character value "01011960"C. a missing value due to syntax errorsD. the step will not compile because of the character argument in the mdy function.Answer: A-------------------------------------5.Which statement specifies that records 1 through 10 are to be read from the raw data file customer.txt?A. infile 'customer.txt' 1-10;B. input 'customer.txt' stop@10;C. infile 'customer.txt' obs=10;D. input 'customer.txt' stop=10;Answer: C-------------------------------------6.After a SAS program is submitted, the following is written to the SAS log:101 data WORK.JANUARY;102 set WORK.ALLYEAR(keep=product month num_Sold Cost); 103 if Month='Jan' then output WORK.JANUARY;104 Sales=Cost * Num_Sold;105 keep=Product Sales;-----22ERROR 22-322: Syntax error, expecting one of the following: !,!!, &, *, **, +, -, , <=, <>, =, >, >=,AND, EQ, GE, GT, IN, LE, LT, MAX, MIN, NE, NG,NL,NOTIN, OR, ^=, |, ||, ~=.106 run;What changes should be made to the KEEP statement to correct the errors in the LOG?A. keep=(Product Sales);B. keep Product, Sales;C. keep=Product, Sales;D. keep Product Sales;Answer: D-------------------------------------7.Which of the following choices is an unacceptable ODS destination for producing output that can be viewed in Microsoft Excel?A. MSOFFICE2KB. EXCELXPC. CSVALLD. WINXPAnswer: D-------------------------------------8.The SAS data set named WORK.SALARY contains 10 observations for each department,and is currently ordered by Department. The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY(keep=Department MonthlyWageRate);by Department;if First.Department=1 then Payroll=0;Payroll+(MonthlyWageRate*12);if Last.Department=1;run;Which statement is true?A. The by statement in the DATA step causes a syntax error.B. The statement Payroll+(MonthlyWageRate*12); in the data step causes a syntax error.C. The values of the variable Payroll represent the monthly total for each department in the WORK.SALARY data set.D. The values of the variable Payroll represent a monthly total for all values of WAGERATE in the WORK.SALARY data set.Answer: C-------------------------------------10.The following SAS program is submitted:data WORK.RETAIL;Cost='$20,000';Discount=.10*Cost;run;What is the result?A. The value of the variable Discount in the output data set is 2000.No messages are written to the SAS log.B. The value of the variable Discount in the output data set is 2000.A note that conversion has taken place is written to the SAS log.C. The value of the variable Discount in the output data set is missing. A note in the SAS log refers to invalid numeric data.D. The variable Discount in the output data set is set to zero.No messages are written to the SAS log.Answer: C 因为有一个$符号-------------------------------------11.Given the existing SAS program:proc format;value agegrplow-12 ='Pre-Teen'13-high = 'Teen';run;proc means data=SASHELP.CLASS;var Height;class Sex Age;format Age agegrp.;run;Which statement in the proc means step needs to be modified or added to generate the following results:Analysis Variable : HeightNSex Age Obs Minimum MaximumMean------------------------------------------------------------------F Pre-Teen 3 51.3 59.855.8Teen 6 56.5 66.563.0M Pre-Teen 4 57.3 64.859.7Teen 6 62.5 72.066.8--------------------------------------------------------------------A. var Height / nobs min max mean maxdec=1;B. proc means data=SASHELP.CLASS maxdec=1 ;C. proc means data=SASHELP.CLASS min max mean maxdec=1;D. output nobs min max mean maxdec=1;Answer: C-------------------------------------12.The Excel workbook QTR1.XLS contains the following three worksheets:JANFEBMARWhich statement correctly assigns a library reference to the Excel workbook?A. libname qtrdata 'qtr1.xls';B. libname 'qtr1.xls' sheets=3;C. libname jan feb mar 'qtr1.xls';D. libname mydata 'qtr1.xls' WORK.heets=(jan,feb,mar); Answer: A-------------------------------------13.The following SAS program is submitted:data WORK.TEST;set WORK.MEASLES(keep=Janpt Febpt Marpt);array Diff{3} Difcount1-Difcount3;array Patients{3} Janpt Febpt Marpt;run;What new variables are created?A. Difcount1, Difcount2 and Difcount3B. Diff1, Diff2 and Diff3C. Janpt, Febpt, and MarptD. Patients1, Patients2 and Patients3Answer: A-------------------------------------14.Which of the following programs correctly invokes the DATA Step Debugger:A.data WORK.TEST debug;set WORK.PILOTS;State=scan(cityState,2,' ');if State='NE' then description='Central'; run;B.data WORK.TEST debugger;set WORK.PILOTS;State=scan(cityState,2,' ');if State='NE' then description='Central'; run;C.data WORK.TEST / debug;set WORK.PILOTS;State=scan(cityState,2,' ');if State='NE' then description='Central'; run;D.data WORK.TEST / debugger;set WORK.PILOTS;State=scan(cityState,2,' ');if State='NE' then description='Central';run;Answer: c-------------------------------------15.Which statement is true concerning the SAS automatic variable _ERROR_?A. It cannot be used in an if/then condition.B. It cannot be used in an assignment statement.C. It can be put into a keep statement or keep= option.D. It is automatically dropped.Answer: D-------------------------------------16.The following SAS program is submitted:data WORK.DATE_INFO;X='04jul2005'd;DayOfMonth=day(x);MonthOfYear=month(x);Year=year(x);run;What types of variables are DayOfMonth, MonthOfYear, and Year?A. DayOfMonth, Year, and MonthOfYear are character.B. DayOfMonth, Year, and MonthOfYear are numeric.C. DayOfMonth and Year are numeric. MonthOfYear is character.D. DayOfMonth, Year, and MonthOfYear are date values.Answer: B-------------------------------------17.Given the following data step:data WORK.GEO;infile datalines;input City $20.;if City='Tulsa' thenState='OK';Region='Central';if City='Los Angeles' thenState='CA';Region='Western';datalines;TulsaLos AngelesBangor;run;After data step execution, what will data set WORK.GEO contain?A.City State Region----------- ----- -------Tulsa OK WesternLos Angeles CA WesternBangor WesternB.City State Region ----------- ----- ------- Tulsa OK Western Los Angeles CA Western BangorC.City State Region ----------- ----- ------- Tulsa OK Central Los Angeles CA Western Bangor WesternD.City State Region ----------- ----- ------- Tulsa OK Central Los CA Western BangorAnswer: A-------------------------------------18.Which statement describes a characteristic of the SAS automatic variable _ERROR_?A. The _ERROR_ variable maintains a count of the number of data errors in a DATA step.B. The _ERROR_ variable is added to the program data vector and becomes part of the data set being created.C. The _ERROR_ variable can be used in expressions in the DATA step.D. The _ERROR_ variable contains the number of the observation that caused the data error.Answer: C-------------------------------------19.The SAS data set WORK.ONE contains a numeric variable named Num and a character variable named Char:WORK.ONENum Char--- ----1 233 231 77The following SAS program is submitted:proc print data=WORK.ONE;where Num='1';run;What is output?A.Num Char--- ----1 23B.Num Char--- ----1 231 77C.Num Char--- ----1 233 231 77D. No output is generated.Answer: D-------------------------------------20. The data set WORK.REALESTATE has the variable LocalFee with a format of 9. and a variable CountryFee with a format of 7.;The following SAS program is submitted:data WORK.FEE_STRUCTURE;format LocalFee CountryFee percent7.2;set WORK.REALESTAT;LocalFee=LocalFee/100;CountryFee=CountryFee/100;run;What are the formats of the variables LOCALFEE and COUNTRYFEE in the output dataset?A. LocalFee has format of 9. and CountryFee has a format of 7.B. LocalFee has format of 9. and CountryFee has a format of percent7.2C. Both LocalFee and CountryFee have a format of percent7.2D. The data step fails execution; there is no format for LocalFee.Answer: C-------------------------------------21.Given the SAS data set WORK.PRODUCTS:ProdId Price ProductType Sales Returns------ ----- ----------- ----- -------K12S 95.50 OUTDOOR 15 2B132S 2.99 CLOTHING 300 10R18KY2 51.99 EQUIPMENT 25 53KL8BY 6.39 OUTDOOR 125 15DY65DW 5.60 OUTDOOR 45 5 DGTY23 34.55 EQUIPMENT 67 2The following SAS program is submitted:data WORK.OUTDOOR WORK.CLOTH WORK.EQUIP;set WORK.PRODUCTS;if Sales GT 30;if ProductType EQ 'OUTDOOR' then outputWORK.OUTDOOR;else if ProductType EQ 'CLOTHING' then output WORK.CLOTH;else if ProductType EQ 'EQUIPMENT' then output WORK.EQUIP; run;How many observations does the WORK.OUTDOOR data set contain?A. 1B. 2C. 3D. 6Answer: B-------------------------------------22.Which step displays a listing of all the data sets in the WORK library?A. proc contents lib=WORK run;B. proc contents lib=WORK.all;run;C. proc contents data=WORK._all_; run;D. proc contents data=WORK _ALL_; run;Answer: c-------------------------------------23.Which is a valid LIBNAME statement?A. libname "_SAS_data_library_location_";B. sasdata libname "_SAS_data_library_location_";C. libname sasdata "_SAS_data_library_location_";D. libname sasdata sas "_SAS_data_library_location_";Answer: C-------------------------------------24.Given the following raw data records:----|----10---|----20---|----30Susan*12/29/1970*10Michael**6The following output is desired:Obs employee bdate years1 Susan 4015 102 Michael . 6Which SAS program correctly reads in the raw data?A.data employees;infile 'file specification' dlm='*';input employee $ bdate : mmddyy10. years; run;B.data employees;infile 'file specification' dsd='*';input employee $ bdate mmddyy10. years;run;C.data employees;infile 'file specification' dlm dsd;input employee $ bdate mmddyy10. years;run;D.data employees;infile 'file specification' dlm='*' dsd;input employee $ bdate : mmddyy10. years; run;Answer: D-------------------------------------25.Given the following code:proc print data=SASHELP.CLASS(firstobs=5 obs=15);where Sex='M';run;How many observations will be displayed?A. 11B. 15C. 10 or fewerD. 11 or fewerAnswer: D-------------------------------------26.Which step sorts the observations of a permanent SAS data set by two variables and stores the sorted observations in a temporary SAS data set?A.proc sort out=EMPLOYEES data=EMPSORT;by Lname and Fname;run;B.proc sort data=SASUSER.EMPLOYEES out=EMPSORT;by Lname Fname;run;C.proc sort out=SASUSER.EMPLOYEES data=WORK.EMPSORT;by Lname Fname;run;D.proc sort data=SASUSER.EMPLOYEES out=SASUSER.EMPSORT; by Lname and Fname;run;Answer: B-------------------------------------27.Given the SAS data set WORK.TEMPS:Day Month Temp--- ----- ----1 May 7515 May 7015 June 803 June 762 July 8514 July 89The following program is submitted:proc sort data=WORK.TEMPS;by descending Month Day; run;proc print data=WORK.TEMPS; run;Which output is correct?A.Obs Day Month Temp--- --- ----- ----1 2 July 852 14 July 893 3 June 764 15 June 805 1 May 756 15 May 7B.Obs Day Month Temp --- --- ----- ----1 1 May 752 2 July 853 3 June 764 14 July 895 15 May 706 15 June 80C.Obs Day Month Temp --- --- ----- ----1 1 May 752 15 May 703 3 June 764 15 June 805 2 July 856 14 July 89D.Obs Day Month Temp--- --- ----- ----1 15 May 702 1 May 753 15 June 804 3 June 765 14 July 896 2 July 85Answer: C-------------------------------------28.Given the SAS data set WORK.P2000: Location Pop2000-------- -------Alaska 626931Delaware 783595Vermont 608826Wyoming 493782and the SAS data set WORK.P2008:State Pop2008-------- -------Alaska 686293Delaware 873092Wyoming 532668The following output is desired:Obs State Pop2000 Pop2008 Difference1 Alaska 626931 686293 593622 Delaware 783595 873092 894973 Wyoming 493782 532668 38886 Which SAS program correctly combines the data?A.data compare;merge WORK.P2000(in=_a Location=State)WORK.P2008(in=_b);by State;if _a and _b;Difference=Pop2008-Pop2000;run;B.data compare;merge WORK.P2000(rename=(Location=State)) WORK.P2008;by State;if _a and _b;Difference=Pop2008-Pop2000;run;C.data compare;merge WORK.P2000(in=_a rename=(Location=State)) WORK.P2008(in=_b);by State;if _a and _b;Difference=Pop2008-Pop2000;run;D.data compare;merge WORK.P2000(in=_a) (rename=(Location=State)) WORK.P2008(in=_b);by State;if _a and _b;Difference=Pop2008-Pop2000;run;Answer: C-------------------------------------29.The following SAS program is sumbitted:data ;infile 'DATAFILE.TXT';input @1 Company $20. @25 State $2. @;if State=' ' then input @30 Year;else input @30 City Year;input NumEmployees;run;How many raw data records are read during each iteration of the DATA step?A. 1B. 2C. 3D. 4Answer: A-------------------------------------30.You're attempting to read a raw data file and you see the following messages displayed in the SAS Log:NOTE: Invalid data for Salary in line 4 15-23.RULE: ----+----1----+----2----+----3----+----4----+----5--4 120104 F 46#30 11MAY1954 33Employee_Id=120104 employee_gender=F Salary=. birth_date=-2061 _ERROR_=1 _N_=4NOTE: 20 records were read from the infile 'c:\employees.dat'.The minimum record length was 33.The maximum record length was 33.NOTE: The data set WORK.EMPLOYEES has 20 observations and 4 variables.What does it mean?A. A compiler error, triggered by an invalid character for the variable Salary.B. An execution error, triggered by an invalid character for the variable Salary.C. The 1st of potentially many errors, this one occurring on the 4th observation.D. An error on the INPUT statement specification for reading the variable Salary.Answer: B------------------------------------------------------------------31. Given the following raw data records in DATAFILE.TXT:----|----10---|----20---|----30Kim,Basketball,Golf,TennisBill,FootballTracy,Soccer,TrackThe following program is submitted:data WORK.SPORTS_INFO;length Fname Sport1-Sport3 $ 10;infile 'DATAFILE.TXT' dlm=',';input Fname $ Sport1 $ Sport2 $ Sport3 $;run;proc print data=WORK.SPORTS_INFO;run;Which output is correct based on the submitted program?A.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football3 Tracy Soccer TrackB.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football Football Football3 Tracy Soccer Track TrackC.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football Tracy SoccerD.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill FootballAnswer: C------------------------------------------------------------------32.Consider the following data step:data WORK.NEW;set WORK.OLD;Count+1;run;The variable Count is created using a sum statement. Which statement regarding this variable is true?A. It is assigned a value 0 when the data step begins execution.B. It is assigned a value of missing when the data step begins execution.C. It is assigned a value 0 at compile time.D. It is assigned a value of missing at compile time.Answer: C------------------------------------------------------------------33.The following SAS program is submitted:data WORK.TEST;set WORK.PILOTS;if Jobcode='Pilot2' then Description='Senior Pilot';else Description='Unknown';run;The value for the variable Jobcode is: PILOT2.What is the value of the variable Description?A. PILOT2B. UnknownC. Senior PilotD. ' ' (missing character value)Answer: B------------------------------------------------------------------34.A user-defined format has been created using the FORMAT procedure.How is it stored?A. in a SAS catalogB. in a memory resident lookup tableC. in a SAS dataset in the WORK libraryD. in a SAS dataset in a permanent SAS data libraryAnswer: AThese formats must be stored in the WORK.FORMATS or SASUSER.FORMATS catalog------------------------------------------------------------------ 35.given the SAS data set SASDATA.TWO:X Y-- --5 23 15 6The following SAS program is submitted:data SASUSER.ONE SASUSER.TWO OTHER;set SASDATA.TWO;if X eq 5 then output SASUSER.ONE;if Y lt 5 then output SASUSER.TWO;output;run;What is the result?A.data set SASUSER.ONE has 5 observationsdata set SASUSER.TWO has 5 observationsdata set WORK.OTHER has 3 observationsB.data set SASUSER.ONE has 2 observationsdata set SASUSER.TWO has 2 observationsdata set WORK.OTHER has 1 observationsC.data set SASUSER.ONE has 2 observationsdata set SASUSER.TWO has 2 observationsdata set WORK.OTHER has 5 observationsD. No data sets are output. The DATA step fails execution due to syntax errors.Answer: A------------------------------------------------------------------ 36.Given the contents of the raw data file 'EMPLOYEE.TXT':----+----10---+----20---+----30--Xing 2 19 2004 ACCTBob 5 22 2004 MKTGJorge 3 14 2004 EDUCThe following SAS program is submitted:data WORK.EMPLOYEE;infile 'EMPLOYEE.TXT';input@1 FirstName $@15 StartDate@25 Department $;run;Which SAS informat correctly completes the program?A. date9.B. mmddyy10.C. ddmmyy10.D. mondayyr10.Answer: B-------------------------------------------------------------37.The SAS data set Fed.Banks contains a variable Open_Date which has been assigned a permanent label of "Open Date". Which SAS program temporarilyreplaces the label "Open Date" with the label "Starting Date" in the output?A.proc print data=SASUSER.HOUSES label;label Open_Date "Starting Date";run;B.proc print data=SASUSER.HOUSES label;label Open_Date="Starting Date";run;C.proc print data=SASUSER.HOUSES;label Open_Date="Starting Date";run;D.proc print data=SASUSER.HOUSES;Open_Date="Starting Date";run;Answer: B------------------------------------------------------------------ 38.Given the SAS data set WORK.ONE:X Y Z- - --1 A 271 A 331 B 452 A 523 B 704 A 824 C 91The following SAS program is submitted:data WORK.TWO;set WORK.ONE;by X Y;if First.Y;run;proc print data=WORK.TWO noobs; run;Which report is produced?A.X Y Z-- -- --1 B 452 B 693 B 704 A 82 4 C 91B.X Y Z -- -- -- 1 A 271 B 452 A 522 B 693 B 704 A 82 4 C 91C.X Y Z -- -- -- 1 A 33 1 B 452 B 693 B 704 A 824 C 91D. The PRINT procedure fails because the data set WORK.TWO is not created in the DATA step.Answer: B------------------------------------------------------------------39.The following SAS program is submitted:data WORK.AUTHORS;array Favorites{3} $ 8 ('Shakespeare','Hemingway','McCaffrey'); run;What is the value of the second variable in the dataset WORK.AUTHORS?A. HemingwayB. HemingwaC. ' ' (a missing value)D. The program contains errors. No variables are created.Answer: B------------------------------------------------------------------ 40.The following SAS program is submitted:data WORK.PRODUCTS;Prod=1;do while(Prod LE 6);Prod + 1;end;run;What is the value of the variable Prod in the output data set?A. 6B. 7C. 8D. . (missing numeric)Answer: B。
SASbase考试必备70真题(附答案)
t ted:;Y;r;l l=0;a te;d e_>;run;The SAS data set.?rrr: A-------------------------------------I LE.TXT:----|----10---|----20---|----30n tTina,MAR,29,1n te d:$13 $25 $14 $27 .n t $26 $17 $29 $11 $23$15 $18 $12 $13 .n t $29 $14 $19 $27 $20t?A.R S;s $ 7;I LE.TXT' dsd;$;s $;s $;-r6.;run;R S;run;B.R S;s $ 7;v er;$;='FEB' s $;s $;-r6.;run;R S;run;C.R S;h s $ 7;I LE.TXT' dlm=',';$ @;s $;s $;f-r6.;run;R S;run;D.R S;s $ 7;I LE.TXT' dsd @;$;Week s $;s $;-r6.;run;R S;run;r: C-------------------------------------wo: EASTWESTt ted:n s.xls';h eet?;run;$;run;'e;run;$'n;run;r: D-------------------------------------w t ted:I NFO;Day="01" ;Yr=1960 ;X=mdy(Day,01,Yr) ;run;b le X?960"n g v si on.r: A-------------------------------------g h 10 are to be read from them er.txt?m er.txt' 1-10;m er.txt' stop@10;m er.txt' obs=10;m er.txt' stop=10;r: C-------------------------------------a S e n to the SAS log:R Y;o ld Cost);R Y;o ld;1;-----22-w ing: !,!!, &, *, **, +, -, , <=, <>, =, >, >=,AND, EQ, GE, GT, IN, LE, LT, MAX, MIN, NE, NG, OR, ^=, |, ||, ~=.106 run;s in the LOG?);;;c t Sa;r: D-------------------------------------?X PLr: D-------------------------------------t ted:data WORK.;);;l l=0;*12);=1;run;m ent is true?A. T..t men Y data set.Y data set.r: C-------------------------------------a m is sub t ted:L;Cost='$20,000';u nt=.10*Cost;run;t?e n to the SAS log.e n to the SAS log.n g.i c data.e n to the SAS log.r: C 因为有一个$符号-------------------------------------a m:t;age plow-12 ='Pre-Teen'13-high = 'Teen';run;;t;Sex Age;p.;run;tot s:tNu m Mean ------------------------------------------------------------------F Pre-Teen 3 51.3 59.8 55.8Teen 6 56.5 66.5 63.0 M Pre-Teen 4 57.3 64.8 59.7 Teen 6 62.5 72.0 66.8 --------------------------------------------------------------------c=1;c=1 ;dat c=1;c=1;r: C-------------------------------------: JANFEBMARst o ok?t a 'qtr1.xls';s=3;m e jan feb mar 'qtr1.xls';=(jan,feb,mar);r: A-------------------------------------t ted:data WORK.TEST;);-u nt3;;run;e d?u nt3n ts3r: A-------------------------------------g er:A.;S;t ate,2,' ');a l';run;B.data WORK.TES g er;S;t ate,2,' ');a l';run;C.;S;t ate,2,' ');a l';run;D.g er;S;t ate,2,' ');a l';run;r: c-------------------------------------R_?t ion.m ent.n.l ly dro e d.r: D-------------------------------------t ted:I NFO;2005'd;=day(x);(x);Year=year(x);run;of r, and Year?c ter.i c.c ter.D s.r: B-------------------------------------w ing data step:data WORK.GEO;i nes;City $20.;' then='OK';a l';e s' then='CA';r n';i nes;e sr;run;i n?A.C n----------- ----- -------r nr nr nB.n----------- ----- -------r nr nrC.n----------- ----- -------a lr nr nD.City n----------- ----- -------a lr nrr: A-------------------------------------a ticR_?s in a DATA step.e d.C. The _E s in the DATA step..r: C-------------------------------------iChar:WORK.ONENum Char--- ----1 233 231 77t ted:data=WORK.ONE;Num='1';run;t?A.Num Char--- ----1 23B.Num Char--- ----1 231 77C.Num Char--- ----1 233 231 77a ted.r: D-------------------------------------t of 7.;t ted:U RE;F ee C n t7.2;S TAT;F ee/100;/100;run;e t?t of 9. a t of 7.n t7.2n t7.2t for Lo F ee.r: C-------------------------------------C TS:n s------ ----- ----------- ----- -------O R 15 2I NG 300 10M ENT 25 5O R 125 15O R 45 53M ENT 67 2t ted:;C TS;GT 30;O R;;; run;i n?A. 1B. 2C. 3D. 6r: B-------------------------------------r y?n ts lib=WORK run;n ts lib=WORK.all;run;; run;; run;r: c-------------------------------------m ent?n_";n_";n_";n_";r: C-------------------------------------d s:----|----10---|----20---|----30*12/29/1970*10e l**6e d:4015 10e l . 6in the raw data?A.dat y ees;i on' dlm='*';;run;B.y ees;i on' dsd='*';;run;C.dat y ees;i on' dlm dsd;;run;D.y ees;i on' dlm='*' dsd;;run;r: D-------------------------------------w ing code:o bs=5 obs=15);Sex='M';run;a yed?A. 11B. 15r: D-------------------------------------r ary SAS data set?A.proc sort out=E R T;;run;B.R T;;run;C.R T;;run;D.proc sort R T;;run;r: B-------------------------------------:Temp--- ----- ----1 May 7515 May 7015 June 803 June 762 July 8514 July 89t ted:;Day; run;; run;c t?A.Temp--- --- ----- ----1 2 July 852 14 July 893 3 June 764 15 June 805 1 May 756 15 May 7B.Obs Day Temp --- --- ----- ----1 1 May 752 2 July 853 3 June 764 14 July 895 15 May 706 15 June 80C.Temp--- --- ----- ----1 1 May 752 15 May 703 3 June 764 15 June 805 2 July 856 14 July 89D.Temp--- --- ----- ----1 15 May 702 1 May 753 15 June 804 3 June 765 14 July 896 2 July 85r: C-------------------------------------the SAS data set WO:00-------- -------1562:08-------- -------a328e d:2n es the data?A.r e;)(in=_b);;if _a and _b;-00;run;B.r e;));;if _a and _b;-00;run;C.r e;WORK.P))(in=_b);;if _a and _b;-00;run;D.r e;))(in=_b);;if _a and _b;-00;run;r: C-------------------------------------t ted:data ;I LE.TXT';n y $20. @25 St$2. @;@30 Year;@30 City Year;e s;run;t ion of the DATA step?A. 1B. 2C. 3D. 4r: A-------------------------------------a yed in the SAS Log:y in line 4 15-23.RULE: ----+----1----+----2----+----3----+----4----+----5--1954 33-R_=1 _N_=4y ees.dat'.h was 33.h was 33.b les. What does it mean?y.B. An e y.n.y.r: B------------------------------------------------------------------I LE.TXT:----|----10---|----20---|----30sa llt ted:O;-3 $ 10;I LE.TXT' dlm=',';3 $;run;data=WORK.SPOR O;run;a m?A.3sa llrB.3sa llC.Spor3srD.3s2 Bil a llr: C------------------------------------------------------------------w ing data step:data WORK.NEW;set WORK.OLD;+1;run;m ent. Whb le is true?t ion.t ion.l e time.l e time.r: C------------------------------------------------------------------t ted:data WORK.TEST;S;';w n';run;n?2w n)r: B-------------------------------------------------------------------d?o gB. in a mer yr yr: Ao g------------------------------------------------------------------T A.TWO:X Y-- --5 23 15 6t ted:;T A.TWO;if X eq 5 then E R.ONE;E R.TWO;t;run;t?A.n sn sn sB.n sn sn sC.n sn sdata set WORK.OT n ss.r: A------------------------------------------------------------------Y EE.TXT':----+----10---+----20---+----30--Xing 2 19 2004 ACCTBob 5 22 2004 MKTG3 14 2004 EDUCt ted:Y EE;Y EE.TXT';N ame $D ate$;run;a m?.y10.y10..r: B-------------------------------------------------------------hasyt?A.;i ng Date";run;B.;i ng Date";run;C.data=SASU S;i ng Date";run;D.S;i ng Date";run;r: B------------------------------------------------------------------the SAS data set WORK.ONE: X Y Z- - --1 A 271 A 331 B 452 A 522 B 693 B 704 A 824 C 91t ted: data WORK.TWO;set WORK.ONE;by X Y;.Y;run;; run;c ed?A.X Y Z-- -- --1 B 452 A 522 B 693 B 704 A 824 C 91B.X Y Z-- -- --1 A 271 B 452 A 522 B 693 B 704 A 824 C 91C.X Y Z-- -- --1 A 331 B 452 A 522 B 693 B 704 A 824 C 91d uref e d in the DATA step.r: B------------------------------------------------------------------t ted:R S;i tes{3} $ 8 f rey');run;R S?g wayg wa)b les are e d.r: B------------------------------------------------------------------t ted:C TS;Prod=1;(Prod LE 6);Prod + 1;end;run;of t data set?A. 6B. 7C. 8i c)r: B------------------------------------------------------------------.txt:----|----10---|----20---|----30---|304-923-3721 14t ted:S;.txt';s ion;d e_>run;a me?a me);a me);a a me;a me;r: A------------------------------------------------------------------t ted:data WORK.ONE;r k';Pos=find(Text,'US','i',5);run;n to Pos?A. 0B. 1C. 2D. 12r: D------------------------------------------------------------------S:Se d-------- ------------ ---------200920092009,t.n ote,m er name.n".n ote?n otm er);m er);w r m er);m er);r: D------------------------------------------------------------------a m i t ted:E R.TWOE R.ONE;run;e d?e dB. 3 te e de de dr: D------------------------------------------------------------------t ted:l file='c:\test.cvs';data=WORK.ONE;;b er;run;;t?.r.r.test.cvs that can d by SAS.r: C------------------------------------------------------------------the SAS data set WORK.ONE:--- ----------- ----------- -----------1 1.2 1.6 2.0t ted:data WORK.TWO;set WORK.ONE;=mean(of Rev:);run;?A. 3B. 1.6C. 4.8s.r: B------------------------------------------------------------------d ure:d ureof reg c tc te ncy|n t |Row Pct |---------+--------+--------+--------+EAST | 2 | 1 | 1 | 4| 22.22 | 11.11 | 11.11 | 44.44| 50.00 | 25.00 | 25.00 || 50.00 | 33.33 | 50.00 |---------+--------+--------+--------+| 2 | 2 | 1 | 5| 22.22 | 22.22 | 11.11 | 55.56| 40.00 | 40.00 | 20.00 || 50.00 | 66.67 | 50.00 |---------+--------+--------+--------+4 3 2 944.44 33.33 22.22 100.00n ate the row an ts?n tn tsr: C------------------------------------------------------------------ 48.The f t ted:data WORK.TEST;drop City;i nes;Name $ 1-14 /s s $ 1-14 /City $ 1-12 ;$2.;;i nes;y123 Main St.WInAve.New YorkNYoaCA;i n?A.Name Add-------------- ---------------- ------y123 Main St.Ave. NYoB.-------------- ---------------- ----------- ------Ave. New York NYaC.-------------- ---------------- ------Ave. NYin the data step.r: A------------------------------------------------------------------49.The fol t ted:{12}););{12};do i=1 to 12;;end;drop i;run;s.?n.*).C. The k{12}..r: A------------------------------------------------------------------the SAS data set WORK.ONE:Id--- -----111 A158 B329 C644 Dand the SAS data set WORK.TWO:--- -----111 E538 F644 Gt ted:data WORK.BOTH;set WORK.ONE WORK.TWO;by Id;run;n in SAS data set WORK.BOTH?--- ----- -----111 AB.--- ----- -----111 EC.--- ----- -----111 A ED.--- ----- -----644 D Gr: A------------------------------------------------------------------t ted:;run;a m?r y.n ts of the SAS data sets that arer y.r y.data sets.r: D------------------------------------------------------------------A ME:---- -----Jill 1864Jack 2121Joan 4698John 5463E PT:----- ----------c et ingt ted:data WORK.ALL;A ME));;);run;a m?A. 1B. 2C. 3D. 5r: B------------------------------------------------------------------t ted:R Y;;Y;;.De=0;a te);;run;?A. 0n ga tet br: B------------------------------------------------------------------w ing data step:data WORK.TEST;(obs=5);';';run;a m is true?A. a ted to 8e d.newi e.a tede d.n ed one time, S.r: D------------------------------------------------------------------t ted:I NFO;1960" D ;run;?1960"960t e.r: D 注意D前面有空格------------------------------------------------------------------d ure:d urec tc te ncy|n t |Row Pct |---------+--------+--------+--------+EAST | 2 | 1 | 1 | 4| 22.22 | 11.11 | 11.11 | 44.44| 50.00 | 25.00 | 25.00 || 50.00 | 33.33 | 50.00 |---------+--------+--------+--------+| 2 | 2 | 1 | 5| 22.22 | 22.22 | 11.11 | 55.56| 40.00 | 40.00 | 20.00 || 50.00 | 66.67 | 50.00 |---------+--------+--------+--------+4 3 2 944.44 33.33 22.22 100.00a mt?;d e_>run;s c t;c tc t;c t;r: D------------------------------------------------------------------the SAS data set WORK.ONE:N Be D ate- ---------20102010t ted:data WORK.TWO;set WORK.ONE;d e_>;.;run;e d, whera y, ... :WORK.TWOD ate Day- --------- ---2010 12010 4e b le Day?D ate)D ate)D ate)())r: B------------------------------------------------------------------a t ted:t;t.-= 'Less than 50K'-e r';o=1;t';;a te;tt..;y ee'y'a te='Date of Hire';run;a m fail?m ent.d ure.m ent.n g f m ent.r: C------------------------------------------------------------------O LOR.DAT:----+----10---+----20---+----30ww ing SAS pr t ted:R S;o ver;hType $ 5$ 11;Type $$;run;?A. T w=ww=r: D------------------------------------------------------------------C TS:n s------ ----- ----------- ----- -------O R 15 2I NG 300 10251.99 EQUI M ENT 25 5O R 125 15O R 45 5M ENT 67 2t ted:data WORK);n s);-n s);run;i n?A. 2B. 3C. 4D. 6r: A------------------------------------------------------------------d er the data step:data WORK.TEST;1.csv' dsd;t;=1;=2;run;?=2;=2;=2;D. both A or C will work.r: A------------------------------------------------------------------t ted:e_>;e r' , 'Boot');run;e_>,d in an html file?A..html';;B..html' / html;;C..html';;D..html';;Answ r: C------------------------------------------------------------------t ted:;(Prod GT 6);Prod + 1;end;run;b le Prod t data set?n g)B. 6C. 7i te loop.r: C------------------------------------------------------------------t ted:data WORK.;;n';run;e t?word).).n.e d in a PROC step.r: C------------------------------------------------------------------t ted:;do Year=1 to 5;=1 to 12;X + 1;end;end;run;n s are wri data set?A. 0B. 1C. 5D. 60r: B------------------------------------------------------------------w ing data step:data WORK.NEW;set WORK.OLD(keep=X);if X < 10 then X=1;else if X >= 10 AND X LT 20 then X=2;else X=3;run;?A.of 1.of 3.n g.s.r: A n g data 最小------------------------------------------------------------------t ted:;;$6;;run;,we t?i c.w n.c ter.a m fail s.r: D------------------------------------------------------------------T A:e r_i ID------- ---------------------- ---------------- ------11111 one oe r'?-e r';-E R';e r ';e r%';r: D------------------------------------------------------------------e n to the SAS log:R Y;i ty Cost);R Y;i ty;i ty Cost;-----22-w ing: !,!!, &, *, **, +, -,, <=, <>, =, >, >=,AND, EQ, GE, GT, IN, LE, LT, MAX, MIN, NE, NG, NL,, OR, ^=, |, ||, ~=.110 run;in the log?i ty Cost)i ty, Cost)i ty, Cost)i ty Cost)r: D------------------------------------------------------------------。
SBe认证考试真题答案详解
S A S B a s e认证考试—70题SAS分多个认证种类：base，advanced，clinic等，但大多需要先通过base认证。
但凡这类商业组织提供的考证，基本都是题库型，所以想考过难度并不大。
对于只想拿SAS认证的人，如果熟练掌握网上流传甚广的sas真题70题，通过base认证基本就没问题。
Q 11. The following SAS program is submitted:data ;set ;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within DepartmentA. GenderB. DepartmentC. Gender DepartmentD. Department Gender答案：A本题知识点：自动变量在SAS读取数据时，在PDV过程中会产生很多自动变量，在输出的数据集中是不可见的。
· ：同一个BY变量（组），若新的变量值第一次出现时，其值为1。
· ：同一个BY变量（组），若新的变量值最后一次出现时，其值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in :----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final $13 $25 $14 $27 .2 John MAR Current $26 $17 $29 $11 $233 Tina FEB Final $15 $18 $12 $13 .4 Tina MAR Current $29 $14 $19 $27 $20Which SAS program correctly produces the desired outputA. data ;length Name $ 4 Month $ 3 Status $ 7;infile '' dsd;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=;run;B. data ;length Name $ 4 Month $ 3 Status $ 7;infile '' dlm=',' missover;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=;run;C. data ;length Name $ 4 Month $ 3 Status $ 7;infile '' dlm=',';input Name $ Month $ @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=;run;D. data ;length Name $ 4 Month $ 3 Status $ 7;infile '' dsd @;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=;run;答案：C本题知识点：INFILE语句与指示器@、@@INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;· filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS语句· 下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
SAS-Base认证考试—70题(01-10)
SAS分多个认证种类：base，advanced，clinic等，但大多需要先通过base认证。
但凡这类商业组织提供的考证，基本都是题库型，所以想考过难度并不大。
对于只想拿SAS认证的人，如果熟练掌握网上流传甚广的sas真题70题，通过base认证基本就没问题。
•SAS Base认证考试题库—70题[完整答案版]Q 11. The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set WORK.SALARY is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within Department?A. GenderB. DepartmentC. Gender DepartmentD. Department Gender答案：A本题知识点：自动变量在SAS读取数据时，在PDV过程中会产生很多自动变量，在输出的数据集中是不可见的。
•FIRST.VARIABLE：同一个BY变量（组），若新的变量值第一次出现时，其first.variable值为1。
•LAST.VARIABLE：同一个BY变量（组），若新的变量值最后一次出现时，其last.variable值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final 13 25 14 27 .2 John MAR Current 26 17 29 11 $233 Tina FEB Final 15 18 12 13 .4 Tina MAR Current 29 14 19 27 $20Which SAS program correctly produces the desired output?A. data WORK.NUMBERS;length Name 4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input Name Month ;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B. data WORK.NUMBERS;length Name 4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input Name Month ;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C. data WORK.NUMBERS;length Name 4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input Name Month @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D. data WORK.NUMBERS;length Name 4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input Name Month ;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;答案：C本题知识点：INFILE语句与指示器@、@@INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;•filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS语句•下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
SAS_Base认证考试—70题(31_40)
SAS Base认证考试—70题(31-40)Q 31Given the following raw data records in DATAFILE.TXT:----|----10---|----20---|----30Kim,Basketball,Golf,TennisBill,FootballTracy,Soccer,TrackThe following program is submitted:data WORK.SPORTS_INFO;length Fname Sport1-Sport3 $ 10;infile 'DATAFILE.TXT' dlm=',';input Fname Sport1 Sport2 Sport3 ;run;proc print data=WORK.SPORTS_INFO;run;Which output is correct based on the submitted program? A.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football3 Tracy Soccer TrackB.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football Football Football3 Tracy Soccer Track TrackC.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football Tracy SoccerD.Obs Fname Sport1 Sport2 Sport31 Kim Basketball Golf Tennis2 Bill Football答案：C本题知识点：INFILE语句选项MISSOVER参考第5题。
SAS-Base认证考试—70题(01-10)
SAS-Base认证考试—70题(01-10)LAST.VARIABLE：同一个BY变量（组），若新的变量值最后一次出现时，其last.variable值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week 2 Week3 Week4 Week51 John FEB Final1325 1427 .2 John MAR Current2617 29 11 $233 Tina FEB Final1518 1213 .4 Tina MAR Current2914 19 27 $20Which SAS program correctly produces the desired output?A. data WORK.NUMBERS;length Name4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input NameMonth;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B. data WORK.NUMBERS;length Name4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input NameMonth;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C. data WORK.NUMBERS;length Name4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input NameMonth@;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D. data WORK.NUMBERS;length Name4Month 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input NameMonth;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;答案：C本题知识点：INFILE语句与指示器@、@@ INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;∙filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS 语句∙下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
SASBase认证考试(70真题 答案解析详解)
SAS Base认证考试—70题SAS分多个认证种类：base，advanced，clinic等，但大多需要先通过base认证。
但凡这类商业组织提供的考证，基本都是题库型，所以想考过难度并不大。
对于只想拿SAS认证的人，如果熟练掌握网上流传甚广的sas真题70题，通过base认证基本就没问题。
Q 11. The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set WORK.SALARY is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within Department?A. GenderB. DepartmentC. Gender DepartmentD. Department Gender答案：A本题知识点：自动变量在SAS读取数据时，在PDV过程中会产生很多自动变量，在输出的数据集中是不可见的。
· FIRST.VARIABLE：同一个BY变量（组），若新的变量值第一次出现时，其first.variable值为1。
· LAST.VARIABLE：同一个BY变量（组），若新的变量值最后一次出现时，其last.variable值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final $13 $25 $14 $27 .2 John MAR Current $26 $17 $29 $11 $233 Tina FEB Final $15 $18 $12 $13 .4 Tina MAR Current $29 $14 $19 $27 $20Which SAS program correctly produces the desired output?A. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input Name $ Month $ @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;答案：C本题知识点：INFILE语句与指示器@、@@INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;· filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS语句· 下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
SAS-Base认证考试—70题(21-30)
SAS-Base 认证考试—70题(21-30)此题知识点： IF 子集、 OUPUT 语句子集 IF 语句对知足条件的观察输出到正在被创立的数据集中。
Q 22Which step displays a listing of all the data sets in the WORK library?A. proc contents lib=WORK run;B.proc contents lib=WORK.all;run;C. proc contents data=WORK._all_; run;D. proc contents data=WORK _ALL_; run; 答案： C此题知识点： PROC CONTENTS过程默认自动打印近来创立的数据集的描绘信息PROC CONTENTS;RUN;打印目前目录下的所有数据集的描绘信息PROC CONTENTS DATA=_ALL_;RUN;打印 WORK暂时逻辑库下数据集的描绘信息PROC CONTENTSDATA=WORK._ALL_;RUN;Q 23Which is a valid LIBNAME statement?A. libname "_SAS_data_library_location_";B. sasdata libname"_SAS_data_library_location_";C. libname sasdata"_SAS_data_library_location_";D. libname sasdata sas"_SAS_data_library_location_";答案： C此题知识点： LIBNAME定义逻辑库参照第 12 题。
Q 24Given the following raw data records:----|----10---|----20---|----30Susan*12/29/1970*10Michael**6The following output is desired:Obs employee bdate years1Susan4015102Michael.6Which SAS program correctly reads in the raw data?A. data employees;infile 'file specification' dlm='*';input employee $ bdate : mmddyy10. years;run;B. data employees;infile 'file specification' dsd='*';input employee $ bdate mmddyy10. years;run;C. data employees;infile 'file specification' dlm dsd;input employee $ bdate mmddyy10. years;run;D. data employees;infile 'file specification' dlm='*' dsd;input employee $ bdate : mmddyy10. years;run;答案： D此题知识点： INFILE语句参照第 2 题。
SAS Base认证考试(70真题 答案详解)
SAS Base认证考试—70题SAS分多个认证种类：base，advanced，clinic等，但大多需要先通过base认证。
但凡这类商业组织提供的考证，基本都是题库型，所以想考过难度并不大。
对于只想拿SAS认证的人，如果熟练掌握网上流传甚广的sas真题70题，通过base认证基本就没问题。
Q 11. The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set WORK.SALARY is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within Department?A. GenderB. DepartmentC. Gender DepartmentD. Department Gender答案：A本题知识点：自动变量在SAS读取数据时，在PDV过程中会产生很多自动变量，在输出的数据集中是不可见的。
· FIRST.VARIABLE：同一个BY变量（组），若新的变量值第一次出现时，其first.variable值为1。
· LAST.VARIABLE：同一个BY变量（组），若新的变量值最后一次出现时，其last.variable值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final $13 $25 $14 $27 .2 John MAR Current $26 $17 $29 $11 $233 Tina FEB Final $15 $18 $12 $13 .4 Tina MAR Current $29 $14 $19 $27 $20Which SAS program correctly produces the desired output?A. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input Name $ Month $ @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;答案：C本题知识点：INFILE语句与指示器@、@@INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;· filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS语句·下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
SAS Base认证考试—70题SAS分多个认证种类：base，advanced，clinic等，但大多需要先通过base认证。
但凡这类商业组织提供的考证，基本都是题库型，所以想考过难度并不大。
对于只想拿SAS认证的人，如果熟练掌握网上流传甚广的sas真题70题，通过base认证基本就没问题。
Q 11. The following SAS program is submitted:data WORK.TOTAL;set WORK.SALARY;by Department Gender;if First.<_insert_code_> then Payroll=0;Payroll+Wagerate;if Last.<_insert_code_>;run;The SAS data set WORK.SALARY is currently ordered by Gender within Department.Which inserted code will accumulate subtotals for each Gender within Department?A. GenderB. DepartmentC. Gender DepartmentD. Department Gender答案：A本题知识点：自动变量在SAS读取数据时，在PDV过程中会产生很多自动变量，在输出的数据集中是不可见的。
· FIRST.VARIABLE：同一个BY变量（组），若新的变量值第一次出现时，其first.variable值为1。
· LAST.VARIABLE：同一个BY变量（组），若新的变量值最后一次出现时，其last.variable值为1。
另外，在BY变量右面有多个变量时，先按第一个变量排序，若第一个变量的观测存在重复时，才按第二个变量排序。
Q 2Given the following raw data records in TEXTFILE.TXT:----|----10---|----20---|----30John,FEB,13,25,14,27,FinalJohn,MAR,26,17,29,11,23,CurrentTina,FEB,15,18,12,13,FinalTina,MAR,29,14,19,27,20,CurrentThe following output is desired:Obs Name Month Status Week1 Week2 Week3 Week4 Week51 John FEB Final $13 $25 $14 $27 .2 John MAR Current $26 $17 $29 $11 $233 Tina FEB Final $15 $18 $12 $13 .4 Tina MAR Current $29 $14 $19 $27 $20Which SAS program correctly produces the desired output?A. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;B. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',' missover;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;C. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dlm=',';input Name $ Month $ @;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;D. data WORK.NUMBERS;length Name $ 4 Month $ 3 Status $ 7;infile 'TEXTFILE.TXT' dsd @;input Name $ Month $;if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $; format Week1-Week5 dollar6.;run;proc print data=WORK.NUMBERS;run;答案：C本题知识点：INFILE语句与指示器@、@@INFILE filespecification options;其中，filespecification用来定义文件, options给出选择项;· filespecification有以下三种形式:①、fileref(文件标志)②、’filename’(文件名)③、CARDS指明输入的数据，紧跟着CARDS语句·下列选择项(options)可以出现在INFILE语句中:①、COLUMN=variable或COL=variable 定义一个变量, 其值是指针所在的当前列位置。
②、END=variable 定义一个变量, 作为文件结束的标志。
③、EOF=label是一个语句标号, 当INFILE语句读到文件末尾时, 作为隐含的GOTO语句的目标。
④、LENGHT=variable 定义一个变量, 其值是当前输入数据行的长度。
⑤、FIRSTOBS=linenumber 要求从指定的行开始读取数据, 而不是从文件的第一个记录开始。
⑥、OBS=n 指定从一个顺序输入文件中读取数据的最后一个行(即第1～第n行)。
一个观察可能占n行。
⑦、DLM= 若分隔符不是空格，则使用DLM=指定⑧、DSD 忽略引号中数值的分隔符；自动将字符数据中的引号去掉；将两个相邻分隔符视为缺失值处理。
⑨、MISSOVER 阻止INPUT进入下一行读取，未赋值变量视为缺失值。
⑩、TRUNCOVER 与MISSOVER相似，但在COLUMN INPUT或FORMATTED INPUT中使用。
比较 @ 与 @@ 的区别：· @ 用于1个数据行用多个input语句读取，停留到下一个INPUT语句。
· @@ 用于1个数据行含有多个观测值读取时，停留到下一个DATA步。
Q 3The following SAS program is submitted:data WORK.DATE_INFO;Day="01" ;Yr=1960 ;X=mdy(Day,01,Yr) ;run;What is the value of the variable X?A. the numeric value 0B. the character value "01011960"C. a missing value due to syntax errorsD. the step will not compile because of the character argument in the mdy function.答案：A本题知识点：数据类型的自动转换在SAS中，日期时间是以1960年1月1日0时0分0秒作为起点的。
因此，mdy(1,1,1960)=0。
若把日期时间表示为常数时，要使用相应的格式，带单或双引号，在后面紧跟一个D（日期）、T（时间）、DT（日期时间）。
在本题中，日期函数的参数应该是数值，若是字符串，会先尝试字符串是否可以转换为数值，这是自动转换。
自动转换是指系统产生一个临时的变量来完成赋值或运算。
当自动转换发生时，会在LOG窗口中给出提示。
1）、字符型变量 ->数值型变量在下面的情况中，VarB是一个字符型变量，其它是数字型变量。
·赋值于一个数字型变量，如：VarA=VarB;·在算术运算中使用，如：VarA=VarB+0;·与一个数字型变量进行比较，如：if VarB>=VarA;·在函数中，参数要求数字型变量，如：VarA=sum(VarB,0);2）、数值型变量 ->字符型变量在下面的情况中，VarB是一个数字型变量，其它是字符型变量。
·赋值于一个字符型变量，如：VarA=VarB;·在与要求字符的运算符一起使用，如：VarA=''||VarB;·在函数中，参数要求字符型变量，如：VarA=trim(VarB);Q 4The Excel workbook REGIONS.XLS contains the following four worksheets:EASTWESTNORTHSOUTHThe following program is submitted:libname MYXLS 'regions.xls';Which PROC PRINT step correctly displays the NORTH worksheet?A. proc print data=MYXLS.NORTH;run;B. proc print data=MYXLS.NORTH$;run;C. proc print data=MYXLS.'NORTH'e;run;D. proc print data=MYXLS.'NORTH$'n;run;答案：D本题知识点：打印Excel的某个工作表的数据WHAT IS THAT “$” CH ARACTER?Looking at SAS Explorer it may be surprising that each dataset written to Excel appears twice, once with the expected name and once with a trailing “$”.Unlike a typical data source, data in an Excel spreadsheet need not be left and top aligned. For this Excel has named ranges which allow data to be placed anywhere inside a spreadsheet. By default SAS reads and writes data from named ranges on spreadsheets, but will also read spreadsheet data directly in the absence of a named range. When a new SAS dataset is created in an Excel library, SAS creates both a spreadsheet and a named range. Each is given the same name, with thespreadsheet denoted by a trailing “$”.In the example at right CLASS is the named range created by the Excel engine and CLASS$ is the spreadsheet created by the Excel engine to hold the named range. Within SAS, the named range is referred to as Wrkbk.CLASS, and the spreadsheet is referenced using the name literal Wrkbk.’CLASS$’n.SAS name literals are name tokens written as strings within quotation marks, followed by the letter n. Name literals allow the use of special characters that are not otherwise allowed in SAS names , like the “$” used by the Excel libname engine to distinguish worksheets from named ranges. For more information see the Recommended Readings.摘自《De-Mystifying the SAS LIBNAME Engine in Microsoft Excel: A Practical Guide》Q 5Which statement specifies that records 1 through 10 are to be read from the raw data file customer.txt?A. infile 'customer.txt' 1-10;B. input 'customer.txt' stop@10;C. infile 'customer.txt' obs=10;D. input 'customer.txt' stop=10;答案：C本题知识点：INFILE的选项FIRSTOBS=常数，要求从指定的行开始读取数据, 而不是从文件的第一个记录开始。