Re: [R] Comparing multiple columns in matrix

Hi: Here's one approach. Let x be your matrix; then table(apply(x, 1, which.max)) 2 3 3 3 If you prefer the result in data frame form, then > as.data.frame(table(apply(x, 1, which.max))) Var1 Freq 123 233 HTH, Dennis On Mon, May 31, 2010 at 2:39 AM, Noah Silverman wrote: > W

[R] Comparing multiple columns in matrix

We're running Monte Carlo repeated measures for several groups. The goal is to determine the number of time each group has the highest score. A toy example: [,1] [,2] [,3] 0.1 0.2 0.3 0.1 0.2 0.3 0.1 0.2 0.3 0.1 0.3 0.2 0.1 0.3 0.2 0.2 0.3 0.1 For this example: