![]() It has an outlier: a case that’s outside the whiskers of the boxplot. This last boxplot has all the interesting features. ![]() To make a simple boxplot of one variable, not grouped by anything, there’s another option: summaries of separate variables. ![]() For example, in this image I made a boxplot of the ‘leeftijd’ variable, grouped by the variable ‘geslacht’: By default this command will allow you to make a boxplot that’s grouped by another variable (the category axis). It’s also possible to use the graph builder through Graphs -> Graph Builder, and a boxplot is also standard output of Analyze -> Descriptive statistics -> Explore. The first is to use Graphs -> Legacy Dialogs – Boxplot. There seem to be a lot of ways to get boxplots out of SPSS. Part of the extra assigments in my statistics class was to make some boxplots of various variables.
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