I want to calculate phi coefficient for every pair of the columns. Is there
a way to generate a matrix like a correlation matrix? I know cor function
in the case below gives same answer as phi coefficient.
x <- sample(c(0,1), 10, replace=TRUE)
y <- sample(c(0,1), 10, replace=TRUE)
z <- sample(c(0,1), 10, replace=TRUE)
df <- data.frame(x,y,z)
cor(df)
library(psych)
phi(df)
Thank you,
Kumar Mainali
Postdoctoral Associate
Department of Biology
University of Maryland
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