www.gusucode.com > stats 源码程序 matlab案例代码 > stats/CustomConfidenceIntervalsExample.m

    %% Fit Linear Model with Custom Confidence Intervals  
% Fit a linear regression model for auto mileage based on the |carbig| data. Then
% obtain confidence intervals for the resulting model coefficients at the
% 99% level.   

%% 
% Load the data and create a table.
load carbig
Origin = nominal(Origin);
tbl = table(Horsepower,Weight,MPG,Origin);

%%
% Fit a linear regression model using horsepower, weight, and origin as the
% predictor variables, and miles per gallon as the response variable.
modelspec = 'MPG ~ 1 + Horsepower + Weight + Origin';
mdl = fitlm(tbl,modelspec);  

%% 
% Find 99% confidence intervals for the coefficients. 
ci = coefCI(mdl,.01) 

%%
% The confidence intervals are wider than the default 5% confidence intervals.