topic Using multiple predicate parameters on sjoin in GeoPandas in Python Questions

Using multiple predicate parameters on sjoin in GeoPandas

BenCutting — Thu, 17 Feb 2022 13:06:11 GMT

Looking for a way to run GeoDataFrame.sjoin() with more than one predicate. For Example, on QGIS' "Join by location" tool, there is a check box of predicates to mark as needed.

When trying to run predicates as a list :

my_sjoin = gdf_1.sjoin(gdf_2, predicate=['within', 'intersects'])

The function wont accept a list:

"TypeError: unhashable type: 'list' "

Re: Using multiple predicate parameters on sjoin in GeoPandas

jcarlson — Tue, 15 Feb 2022 19:55:27 GMT

Intersects is a pretty broad predicate, and would include all features returned by within. You shouldn't really need both.

GeoPandas uses Shapely for spatial joins, and you can read more about the binary predicates here: https://shapely.readthedocs.io/en/latest/manual.html#binary-predicates