Hello,
I found in the forum two threads about point biserial correlation. One of them (1) mentioned "a point-biserial correlation is just a Pearson correlation where one of the variables is dichotomous. Thus, the command is just the normal cor function". The other (2) mentioned "Professor Fox's package polycor" as a way to calculate point biserial correlation? HELP: I am a little confused about what to do. I just need to obtain the correlation index and p-value. Could I just use cor.test? Or is necessary to use other command or even "Professor Fox's package polycor"? Thanks in advance, Cadu 1. http://r.789695.n4.nabble.com/Point-biserial-correlation-td862060.html 2. http://r.789695.n4.nabble.com/Correlation-dichotomous-factor-continous-numer ical-and-ordered-factor-td865214.html#a865215 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
