matlab 统计工具箱函数
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% Statistics Toolbox
% betafit - Beta parameter estimation.
% binofit - Binomial parameter estimation.
% dfittool - Distribution fitting tool.
% evfit - Extreme value parameter estimation.
% expfit - Exponential parameter estimation.
% gamfit - Gamma parameter estimation.
% lognfit - Lognormal parameter estimation.
% mle - Maximum likelihood estimation (MLE).
% mlecov - Asymptotic covariance matrix of MLE. % nbinfit - Negative binomial parameter estimation. % normfit - Normal parameter estimation.
% poissfit - Poisson parameter estimation.
% raylfit - Rayleigh parameter estimation.
% unifit - Uniform parameter estimation.
% wblfit - Weibull parameter estimation.
%
% Probability density functions (pdf).
% betapdf - Beta density.
% binopdf - Binomial density.
% chi2pdf - Chi square density.
% evpdf - Extreme value density.
% exppdf - Exponential density.
% fpdf - F density.
% gampdf - Gamma density.
% geopdf - Geometric density.
% hygepdf - Hypergeometric density.
% lognpdf - Lognormal density.
% mvnpdf - Multivariate normal density.
% nbinpdf - Negative binomial density.
% ncfpdf - Noncentral F density.
% nctpdf - Noncentral t density.
% ncx2pdf - Noncentral Chi-square density. % normpdf - Normal (Gaussian) density.
% pdf - Density function for a specified distribution.
% poisspdf - Poisson density.
% raylpdf - Rayleigh density.
% tpdf - T density.
% unidpdf - Discrete uniform density.
% unifpdf - Uniform density.
% wblpdf - Weibull density.
%
% Cumulative Distribution functions (cdf).
% betacdf - Beta cdf.
% binocdf - Binomial cdf.
% cdf - Specified cumulative distribution function.
% chi2cdf - Chi square cdf.
% ecdf - Empirical cdf (Kaplan-Meier estimate).
% evcdf - Extreme value cumulative distribution function. % expcdf - Exponential cdf.
% fcdf - F cdf.
% gamcdf - Gamma cdf.
% geocdf - Geometric cdf.
% hygecdf - Hypergeometric cdf.
% logncdf - Lognormal cdf.
% nbincdf - Negative binomial cdf.
% ncfcdf - Noncentral F cdf.
% nctcdf - Noncentral t cdf.
% ncx2cdf - Noncentral Chi-square cdf. % normcdf - Normal (Gaussian) cdf.
% poisscdf - Poisson cdf.
% raylcdf - Rayleigh cdf.
% tcdf - T cdf.
% unidcdf - Discrete uniform cdf.
% unifcdf - Uniform cdf.
% wblcdf - Weibull cdf.
%
% Critical Values of Distribution functions.