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

Quantitative study of public policy.


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
awarded  Supporter
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?
Mar
22
asked Which census geography boundaries do congressional districts preserve?
Feb
20
awarded  Scholar
Feb
20
accepted PostGIS - area-weighted calculation on an intersection
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
13
asked How to combine If Then with InStr in ArcMap field calculator?
Nov
13
answered PostGIS - area-weighted calculation on an intersection
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?
Nov
10
awarded  Student
Nov
10
asked PostGIS - area-weighted calculation on an intersection