R-squared can't handle changes?
Hey everyone, I am trying use an r-squared as part of something for my students. It appears to work well to begin with, but if I go back and change the value(s) for even one of the points in the spreadsheet then RSquare goes to "undefined". What's wrong?
Is there a way to set Rsquare up so that it changes along with any point values that are updated in the spreadsheet? I really need this feature to be "flexible" in this way.