calculate average from attribute table separately for each buffer

Discussion created by priyanka_mehta on May 10, 2011
Hi all,

   I have a building shapefile (polygon) and a 50m buffer polygon shapefile.
I clip it to get clipped building shapefile. The shapefile contains "height" information
Now what I need to do is..

I need to find out average of building height separately for each buffer.
Please take a look at the image.

The average on some building polygons falling over one buffer circle is going to be different from other buffer polygon

Please give ideas on how to do it.