Is there a way, using Python, to duplicate a layer in QGIS as many times as the single occurrences of a variable contained in a field and with a filter applied on the duplicated layer based on the variable itself?
An example: I have layer0 with a field0 that contains var1, var2, var3, etc. I would like the layer0 duplicated to layer1, layer2, layer3 etc. so that layer1 has a filter where field0 = var1, layer2 has a filter where field0 = var2, etc.
The idea is similar to the LayersByField plugin but instead of creating a new layer for each occurrence of a variable I wish to just duplicate the "master" layer (so to avoid unnecessary files on disk)
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