I have imported a CSV to QGIS with lat/lon values representing points. The other fields, at least in the original CSV file, contain numeric values.
> sapply(pune_hotspots, class) id lat lon type name 830 930 1030 "integer" "numeric" "numeric" "character" "character" "numeric" "numeric" "numeric" 1130 "numeric"
Now I would like to change the size of the points proportional to values in the attribute table, however, something peculiar happens when I open the Styling page under Layer Properties > Style
Therefore , when selecting Graduated, I am only left with 4 choices of fields to represent, however, these are not the fields that I need to use.
My question is, when importing the CSV, how can I avoid the conversion of certain fields from numeric to strings in QGIS?