Does not seem to work with NaN/missing values

[jdeligt]

Hi, I'm loving this script but I can't seem to get it to work with missing values:

values:Array[32] 0:NaN 1:NaN 2:0 3:NaN

When I replace NaN with any valid int it works just fine.

values:Array[32] 0:-2 1:-2 2:0 3:-2