Plotting residuals

Plot the residuals to check the fit and assumptions of the model.

1. Activate the analysis report worksheet.
2. On the Analyse-it ribbon tab, in the Diagnostics group, click Residuals, and then click:

   Option	Description
   Residual	Plot the residuals.
   3-up	Plot the residuals and a histogram and normal plot.
   5-up	Plot the residuals, a histogram and normal plot, a sequence plot, and a lag plot.

   The analysis task pane, the Residuals panel opens.
3. In the Residuals drop-down list, select:

   Option	Description
   Raw	Plot the raw residual Y - Y fitted.
   Standardized	Plot the standardized residual (Y - Y fitted) / SE.

4. Optional: To test the normality of the residuals, On the Analyse-it ribbon tab, in the Diagnostics group, click Test Normality.
5. Optional: To test for autocorrelation amongst the residuals, On the Analyse-it ribbon tab, in the Diagnostics group, click Test Autocorrelation.
6. Click Recalculate.