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Misc. Stats Topics Discussion > residuals

What are some diagnostic tests for residual? Any help would be appreciated :)

May 23, 2012 | Unregistered CommenterBobby

A few things you can do:

1) plot the standardized residuals (y-axis) against the predicted values from regression(x-value) and that will check for heterscedasticity
2) you can plot the residuals with a histogram and see if they are normally distributed
3) you can include the residuals in a correlation matrix with your predictors, to see if there are problems there

I hope this helps!

May 30, 2012 | Registered CommenterJeremy Taylor