![]() Then click Apply and the line will appear in your chart. This opens the Properties window from here, under the "Reference Line" tab, enter a 0 in the Position field. In the Chart Editor, click on Options > Y Axis Reference Line. To add a horizontal line at 0 after you've made this chart, double-click on the chart in the Output window to open up the Chart Editor. ![]() The scatterplot will be created along with the statistical output. You can make a scatterplot of the residuals and the predicted values of your regression by moving *ZRESID (standardized residuals) into the Y field, and *ZPRED (standardized predicted values) into the X field, then click Continue and OK. To check for heteroscedasticity, before running the linear regression click on the Plots.Use the arrow buttons to move your dependent and independent variables into their respective fields, then click OK. Navigate to Analyze > Regression > Linear.
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