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user 52808
class for parsing and evaluation of expressions in QGIS API. Don't use this tag for non programming related questions, if you are talking about QGIS expressions use qgis-expression tag instead.
5
votes
2
answers
376
views
Converting column with category names to numeric codes in QGIS Field Calculator
I use the Field Calculator in QGIS to transform an attribute column with category names to numeric codes. I use the following expression:
CASE
WHEN "category" = 'Foo' THEN 1
WHEN "category" = …
- 1,614