How can I create a correlation matrix in R?

correlation, matrix, r, visualization

Solution

An example,

 d <- data.frame(x1=rnorm(10),
                 x2=rnorm(10),
                 x3=rnorm(10))
cor(d) # get correlations (returns matrix)

Problem

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

Original source

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