I've recently installed this library to help me with some basic statistics in my project.
I wanted to calculate the correlation coefficient for 2 arrays, which I see I can do with "PearsonsCorrelation".
However, I realized that I should be using a special variant of Pearson if one of the variables is nominal - Point Biserial correlation coefficient.
Could you tell me if this is somehow supported in the library and if not, if there is a similar Java library which can calculate the Point Biserial coefficient.
Thanks for your help!
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