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rraster

R : How to find the location of the max value in a raster?

How can I find a location of max. value in a raster using R? I know the max. value of the raster, but I need to find its location.

Solution

  • Let's try with a toy raster as follows:

    library(raster)
r = raster(nrow=10, ncol=10)
r[] = runif(100,0,10)

    Then the position (index) of the maximum is found using

    idx = which.max(r)

    And from thhe index position to the coordinates of the cell

    pos = xyFromCell(r,idx)

    Let me know if it works