Saturday, 19 January 2019

polygon - Calculating Statistics Based on Expression in QGIS?


Is it possible to calculate the sum of polygon areas based on whether or not it has a value in another column?


For example:



In column 2 I have the area of polygons. I want to calculate the area of all polygons that contain 'AG' in column 1 or all polygons that are IN column 1. But calculate them separately so I can get the total area of each type in column 1.




-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

arcpy - Changing output name when exporting data driven pages to JPG?

Is there a way to save the output JPG, changing the output file name to the page name, instead of page number? I mean changing the script fo...