[GRASS-user] difference between the sum and num options in v.rast.stats

[Roy]

Hi, Margherita
>
>         what is the difference between the sum and num options in
>         v.rast.stats?
>         comparing the results of the two columns they appear to be the
>         same, but
>         I'm sure I'm missing something.
>         Thanks for any pointers
>
>
>
sum is the sum of values and "num" (n) is the number of cells,
if you have all cells = 1,  in this case  sum = num
if this is not the case (all cells = 1) maybe something is wrong ...
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