A note on reproducible GIS by economists: it's mostly absent. Here are some tips.
Reproducibility means that the inputs and methods can be repeated by a (somewhat) knowledgeable person. For GIS, that *might* (should) mean code, but it *definitely* means at least SOME instructions. Even if they are manual....
Maps are data. While your typical Stata/Matlab/R/Julia graph is data projected into Cartesian coordinates, maps are data projected into geographic coordinates. So at a minimum, we need to know what the inputs to the map are, same as we need to know inputs to graphs.
So "data + code" + "graph twoway scatter x y" -> 📈📉, and "data + code" + "maptile x, geo(state)" -> 🗺️. Or "data + code" + "instructions(ArcGIS)" -> 🗺️. Note that for a map, "data" includes shapefiles (including provenance of the shapefile) ImageImage
So: checklist for reproducible maps:
✅ data (+ provenance)
✅ code (manipulates data)
✅ shapefile (provides coordinates)
✅ code (preferred) or instructions (sufficient)
A few tentative resources (please improve!): social-science-data-editors.github.io/guidance/guida… with some other links below
#R sf staff.washington.edu/phurvitz/r_gis/ and interactions with GIS software (and integrated as a dependency into many great packages)
@SciPyTip GeoPandas geopandas.org and others
@ArcGISPro can also be scripted (python) and integrate notebooks pro.arcgis.com/en/pro-app/arc…
Staying #opensource: @qgis has "Graphical Modeler" docs.qgis.org/3.10/en/docs/u… and look for tutorials on "Automating GIS Workflows" courses.spatialthoughts.com
Summary: Please try to create scripted maps, but always describe what data you are mapping, and where you got the shapefiles from (note: copyrights might apply, permissions might need to be obtained!)

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More from @AeaData

8 Dec 20
We have released the first version of a template README for social sciences. social-science-data-editors.github.io/template_READM…
Joint work with @RevEconStud (@korenmiklos), @EJ_RES (Joan Llull) and @CanEconomics Journal (Marie Connolly). We encourage use at @AEAjournals immediately, and will start to verify usage in May 2021.
We also got input from editors at JOLE, JPE, Management Science (@bgreiner_tweets), and JASA (@ChrisPaciorek) (see JASA's version at jasa-acs.github.io/repro-guide/pa…). We hope to get additional input from others.
Read 14 tweets
30 Jun 20
An example of reproducibility checking when data is restricted-access (or "reproducibility checking is hard, but never impossible").
I want to highlight a recent article in the @AEAjournals Economic Policy:
Leung, Pauline, and Christopher O'Leary. 2020. "Unemployment Insurance and Means-Tested Program Interactions: Evidence from Administrative Data." doi.org/10.1257/pol.20… Image
This manuscript was part of our earliest reproducibility checks - assigned to us in April 2019. It is an excellent example of a well-documented, and as it turns out, reproducible article. Even if the data is confidential and restricted-access! (1 Caveat: see the End)
Read 15 tweets

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