I have data for residential house sales in 2010 within England and Wales.
I've added x,y coordinates to the dataset enabling me to plot ~500,000 points across the country. From that I styled it into a heatmap which looks fantastic. Unfortunately the render always looks the same, despite changing the attribute by which points are weighed. Longitude is the only attribute where the map changes the weighting of points. See first 3 screenshots below
The task is to create a heatmap with points weighed by house sale price, not by abundance/concentration.
Interestingly if I use the interpolation plugin, lat (y) and long (x) attributes are the only ones which I can select. Same goes for the Heatmap plugin.
Finally, here is a list of my attributes. Is there an issue with the way I convert my excel work book into a tab deliminated text layer?