Hi all, I have a plot for TSTMean vs. SNRMean and both of these variables are factors. How can I use Logistic Regression for factor variables? Currently I use model=lm(TSTMean~SNRMean,data=df) but when I check summary(model) I get this error: r error in quartile.default (resid) factors are not allowed thanks for any help, Elahe
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