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location Cleveland, OH
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visits member for 2 years, 1 month
seen Oct 20 at 15:54

Quantitative study of public policy.


Apr
22
comment Collapsing the multi-row output of a one-to-many spatial join to single-row (arcmap 10.1)
works, after i learned a bit about how to use arcpy!
Apr
18
comment Collapsing the multi-row output of a one-to-many spatial join to single-row (arcmap 10.1)
thank you so much for your attention to my problem. I will test this as soon as I can. Cheers!
Apr
9
comment ArcMap Geoprocessing Operation to create a layer with incorporated places and, separately, surrounding unincorporated portion of a county?
@PolyGeo Thanks for the feedback. I did remove the second one. Would love to hear more about union/intersect/identity. In particular, advantages over update? Thanks!
Mar
22
comment Which census geography boundaries do congressional districts preserve?
Awesome, authoritative answer. I mean, that makes the volume of data I have to work with more ... 'voluminous' ... but still, good to know! Thanks @nmpeterson !
Mar
22
comment Which census geography boundaries do congressional districts preserve?
I appreciate that, and I realize where the shapefiles reside, but that doesn't quite answer my question. While districts and county boundaries change over time, I'm specifically asking if congressional districts preserve the integrity of any geographies below the city/'places' level: i.e., is there a geography-level (tracts? block groups? blocks?) whose boundaries the congressional districts boundaries do not cut across?
Nov
14
comment How to combine If Then with InStr in ArcMap field calculator?
Sure! It's here: i.imgur.com/GkR6W.png Thanks for your help!
Nov
13
comment How to combine If Then with InStr in ArcMap field calculator?
Hmm ... tried this version, and in this case, the geoprocessing doesn't fail, but it doesn't seem to assign values correctly; none of the records that should take a '1' are receiving them.
Nov
11
comment PostGIS - area-weighted calculation on an intersection
Sorry -- I think I'm confused about one piece of this -- is it ST_Intersects (boolean) or ST_Intersection (geometry)? Or does that depend on the implementation I'm using?
Nov
10
comment PostGIS - area-weighted calculation on an intersection
Thanks for the response, heyoverthere. I've already projected them. Is st intersection the right way to go about what you're suggesting?