In its current version, the function crosstar() doesn't show any legend about the p-value and stars. I'll update the code for displaying legends , as soon as possible. The updated function will be included in the package ggcorrplot as mentioned here: https://github.com/kassambara/ggcorrplot/issues/2.
Wow. Thank you so much for sharing these examples and code.
It works perfectly.
I only have one question. How did you get the indication of p-value ranges and stars below the table? Some I can't get them to show up.
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