AnsweredAssumed Answered

What would cause "ga layer to grid" to create negative values?

Question asked by on Sep 8, 2016
Latest reply on Sep 8, 2016 by Dan_Patterson

I have used the Geostatistical Analyst Wizard to interpolate point data using the radial basis function. The GA layer created has a minimum value of "0" and a maximum value of "114" which correlates to the point data values used. However, when I use the tool "GA Layer to Grid", I am getting a minimum value of "-4.04". I understand the mins and maxes for the raster aren't going to match because the values are averaged within the cell created, but how can a negative value be returned when none exist in the original point data or the GA layer?