I'm currently trying to plot a heat map of a large data set, where each position element has an additional attribute that corresponds to a count of occurrences (let's call it ni).
I want these counts to be taken into account in the density estimate. I guess an easy approach would be to duplicate each of the elements ni times. However, as the data set is pretty large already, I would like to avoid duplication.
Is that possible in QGIS without much data pre-processing?