rcoplot (Statistics Toolbox)

Residual case order plot.

Syntax

rcoplot(r,rint)

Description

rcoplot(r,rint) displays an errorbar plot of the confidence intervals on the residuals from a regression. The residuals appear in the plot in case order. r and rint are outputs from the regress function.

Example

X = [ones(10,1) (1:10)'];
y = X * [10;1] + normrnd(0,0.1,10,1);
[b,bint,r,rint] = regress(y,X,0.05);
rcoplot(r,rint);

The figure shows a plot of the residuals with error bars showing 95% confidence intervals on the residuals. All the error bars pass through the zero line, indicating that there are no outliers in the data.