How can I create a correlation matrix in R?

Question

I have 92 set of data of same type.I want to make a correlation matrix for any two combination possible.i.e. I want a matrix of 92 x92.such that element (ci,cj) should be correlation between ci and cj.How do I do that?

Answer 1

library(dplyr)

data %>%

select(var1:var92) %>%

cor() %>%

as.matrix()