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| GeoCommunity Mailing List |
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| Subject: | [gislist] Two Theme Analysis |
| Date: |
11/18/2004 12:20:01 PM |
| From: |
Taruna Tayal |
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Hi all,
I have a block layer with the census data and a TAZ layer. I want to
aggregate the block layer to the TAZ level in order to get the census
info by TAZ. There are certain TAZ's which are dividing a block into
unequal parts. Hence, I cannot sue the spatial join to run this process.
I used to do this using the two theme analyst in ArcView 3.2 but now
when I am trying, it is giving me an error:
Wrong class for parameter 1 of request ReturnValueNumber. Got a(n) Nil,
expected a(n) field.
What does this mean and how can it be rectified. Also Is there a way to
do the aggregation in ArcGIS 8.3?
Taruna
Martin Alexiou Bryson
Taruna Tayal (Senior Associate)
2414 Wycliff Road Suite 101
Raleigh NC 27607
Ph: 919 881-1243 ext 209
FAX: 919 881-8081
www.mabtrans.com
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