I am using ArcGIS Pro 3.0.0.

I have two multipolygons and I would like to interpolate the values of one polygon to the other. I found the Areal Interpolation tool which does exactly that. One of required option/argument is that the tool asks the user to choose the dataset type average, rate or event.

And, that's where I am stuck because the values are categorical ranging from 0-10.

What datatype should be selected for such an interpolation?

  • 1
    Can you please reflect a bit more on your categories, what 0 or 10 mean?
    – fatih_dur
    Commented Aug 10, 2022 at 2:40
  • @fatih_dur means 0 = Flood Factor (FF) is 0 and vice versa is true for 10. Commented Aug 10, 2022 at 12:55
  • I'd use average and just convert/round the results to the nearest integer category
    – Brennan
    Commented Aug 12, 2022 at 13:59
  • 1
    I suggest adding an integer column first, then using whatever SME knowledge proportionally translates the categories to integers calculate the new field, then use average to interpolate, then finally recategorize afterwards. Commented Aug 15, 2022 at 4:57
  • 1
    This discussion on the Areal Interpolation process helps explain the statistics involved and IMO supports the use of Average unless you're data are derivative based like flow rates or slopes. desktop.arcgis.com/en/arcmap/latest/extensions/… Commented Aug 15, 2022 at 5:04


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.