www.gusucode.com > stats 源码程序 matlab案例代码 > stats/TestResidualsForCorrelationExample.m
%% Test Residuals For Correlation % Copyright 2015 The MathWorks, Inc. %% % Load the sample census data. load census %% % Create a design matrix using the census date (|cdate|) as the predictor. % Add a column of |1| values to include a constant term. n = length(cdate); x = [ones(n,1),cdate]; %% % Fit a linear regression to the data. [b,bint,r] = regress(pop,x); %% % Test the null hypothesis that there is no autocorrelation among the residuals, % |r|. [p,d] = dwtest(r,x) %% % The returned value |p = 0| indicates rejection of the null hypothesis % at the 5% significance level.