2,893 reputation
42343
bio website andrewpwheeler.wordpress.com
location Albany, NY
age 28
visits member for 3 years, 11 months
seen 2 hours ago

Doctoral Student in Criminal Justice.


Jul
22
comment Import arcpy using PyScripter or IDLE gives No module named RuntimeError?
FYI on my windows machine I've had to play around with the environment variables repeatedly to curtail this problem of not being able to find whatever python library.
Jul
9
awarded  Good Question
Jul
2
awarded  Curious
Jun
25
awarded  Enlightened
Jun
25
awarded  Nice Answer
Jun
16
comment Eye-friendly colours for long periods of work
I haven't had to do tedious digitizing like this @Jens, so I do not have experience in that regard. But the printed maps with a dark background I've had good experience in user groups disseminating crime maps with dark backgrounds (community meetings - often with elderly people in darker lit rooms).
Jun
13
answered Eye-friendly colours for long periods of work
Jun
2
comment Interpreting Moran's I results
Instead of posting a screen shot of the excel spreadsheet, you should just include it in text using the code formatting tools. Here one could reproduce your example alot easier if you took that step.
Jun
2
answered Interpreting Moran's I results
May
30
comment Literature on bias in spatial weights matrix
I don't address the differing populations part of the question, as that is more about the model you estimate than it is about the spatial weights matrix specifically. Certain types of spatial models deal with differing populations pretty explicitly (e.g. Bayesian CAR models using the population as a denominator).
May
30
answered Literature on bias in spatial weights matrix
May
29
reviewed Reject suggested edit on QGIS display does not reflect projection
May
29
comment GWR Model with Zero Intercept
This is likely a bad idea, see a post on the stats site about removing the intercept. If your data are counts you might consider a different type of regression model. The logic behind GWR is perfectly adaptable to different types of regression models, e.g. Poisson or Logistic (or even quantile regression). See the spgwr R package for an implementation. Also removing the intercept won't necessarily restrict the predictions to be above 0 anyway.
May
19
reviewed Approve suggested edit on How do you create a CartoDB viz with a dynamic SQL statement?
May
15
comment Arcpy in Python Plugin for SPSS
As of V22 SPSS comes automatically installed with Python, and its version will match your SPSS version. Maybe you can try to download Geoprocessing for 64 bit and see if you can point SPSS's python to that location.
May
15
comment Arcpy in Python Plugin for SPSS
I doubt the Python install with ArcGIS is 64 bit - so if you have 64 bit SPSS that won't work anyway.
May
15
comment Arcpy in Python Plugin for SPSS
No, you can just change the location through the menus. Edit -> Options -> File Locations. I don't believe there is native command syntax to do this.
May
15
comment Arcpy in Python Plugin for SPSS
In V22 of SPSS you can point the Python location to an alternative directory as long as it is the same version of python (2.7), but you need to make sure to match bit versions. (I could test - but I have always had the fortune to have 64 bit SPSS and of course 32 bit ArcGIS).
May
14
comment Determining accessibility of U.S. street address
You could always geocode the data yourself and then associate it to the nearest street in OSM and then grab a tag for that street (if it exists) - if the tag in OSM is really all you want.
May
14
comment Determining accessibility of U.S. street address
Good question, I know RAND published a dataset that provides more global measures of street connectivity, but that is only available at much coarser levels (census tracts). There is also a toolbox for ArcGIS from the City Form Lab that can calculate various measures of connectivity (which you could calculate directly from the TIGER data).