I'm trying to display concentrations of bank lending by postcode in QGIS 3.12.3 Bucaresti, using a Mac 10.15.5
I've successfully joined my attribute only table to my postcode vector layer, and all the data is displayed correctly and in the right place when I open attribute table of the vector layer.
I've then gone into symbology, hit the £ sign, and used
to_int to convert the text Q string of the lending data to integers.
But all the graduated classes display 0 - 0, no matter what I do.
I can see that the data is in the layer and ranges from NULL, to 0, to 10'000s, to millions. What makes this even more frustrating is I've done this exact process on a number of other layers and had no problem.
Can anyone help enlighten what I'm missing or what I'm doing wrong here please?