For information about data considerations, examples, and interpretation, go to Overview for Heatmap.
Enter up to five columns where the categories are represented as rows on the heatmap.
Enter up to five columns where the categories are represented as columns on the heatmap.
Enter a numeric or text column that defines the color gradient of the rectangles in the heatmap. If you enter multiple columns, Minitab generates a separate heatmap for each variable that you enter.
From Function, select the function of the Summarized variables. For example, if you select Maximum, Minitab defines the color gradient for the heatmap based on the maximum value of the summarized variables in each rectangle. If you enter a text column in Summarized variables, you can only select Percent equal to specified values, Number of nonmissing values, or Number of missing values.
When you enter multiple By variables, Minitab enables the Show all combinations checkbox. Select this option to create a separate heatmap for each combination of groups created by the By variables. If you do not select this option, Minitab creates a plot for each group of each By variable.
For example, the first By variable has two groups, Male and Female, and the second By variable has two groups, Employed and Unemployed. If you select Show all combinations, Minitab creates four separate plots for the combinations of Male/Employed, Male/Unemployed, Female/Employed, and Female/Unemployed. If you do not select Show all combinations, Minitab creates four separate plots for Male, Female, Employed, and Unemployed.
When you enter multiple columns in Summarized variables, select this option to use the same gradient scale for each heatmap created for the different columns.