alpave

Fill missing values by interpolation or other procedure?

Discussion created by alpave on Feb 28, 2013
Latest reply on Aug 2, 2016 by abuckley-esristaff
Hello,

I have municipalities (preferred as polygons, but point features also possible) with "journey time" from a central location as a continous metric attribute. For about 5 percent of the municipalities the attribute value is missing and I want to automatically generate a value for these features.

I have tried interpolation with inverse distance weighting which produces good results as raster data. However, I haven't figured out how to get values from the raster transferred into the original polygon or point features' attributes.

Now my questions are:
- How can I transfer values from raster data into (given) point or polygon features?
- Is there solution other than interpolation which is more practical? For example, it would be sufficient to generate an average value from all bordering polygons or points within a certain distance.

Thank you for your help!
Regards,
Alex

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