Hi @lala,
In order to set the same color gradient for multiple columns, you can select the columns on your datatable, right-click to get the options, and then "Standardize Attributes...". You'll then be able to add a common color gradient theme for your selected columns :
However, please note that the same values for min, max and center will be used for each column gradient (so the example of Big Class here might not be appropriate, since height and weight have different ranges and values).
One option to avoid this difference in ranges could be to normalize or standardize your columns before applying the same color gradient :
I hope this answer will help you,
Victor GUILLER
L'Oréal Data & Analytics
"It is not unusual for a well-designed experiment to analyze itself" (Box, Hunter and Hunter)