At 13:15 20/01/2012, Cadu wrote:
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
Dear Michael and Cadu,
Sorry -- I missed the original question.
The polycor package has functions for polyserial and polychoric correlations;
biserial and tetrachoric correlations are special cases for dichotomous
variables. The point biserial correlation is just the Pearson correlation
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
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