Hello, a data.frame, df, holds the numerics, x, y, and z. A function,
fun, should return some arbitrary statistics about the arguments, e.g.
the sum or anything else. What I want to do is to apply this function
to every pair of variables in df, and the return should be a matrix as
found with cov. How can I achieve that? Thanks, Sören
df <- data.frame(x=1:10, y=11:20, z=21:30);
fun <- function(x){
return(sum(x));
}
# and now???
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