i'm pretty new in matlab. so maybe i'm going to do a stupid question.
i have my data already in a matrix form.
i cannot use your function because it expect 3 vectors and nodes ...
can you help me ?
basically i have this surface, results of observation (along x and y there are categorical variables) and i'm expecting a monotonic decreasing surface ... i got it but with some outliers ... i think your function can help me.