How can one find the position of the max value in a matrix in R? Finding the maximum value of a matrix isn't as straight forward as you may think. We can construct a matrix and find the max value:

mat = max(mat)

But we need to get the position of that max value, 11. To do so, we use the powerful `which`

function as follows:

mat w = which(mat == max(mat), arr.ind = TRUE) row = w[1] col = w[2]

### How does it work?

We ask `which`

to tell us the location of `max(mat)`

, and we ask for the array indices to be returned, which is why we include `arr.ind = TRUE`

. The row and column of the maximum value are now stored in `row`

and `col`

, respectively.