I would like to display point data values (indicating biomass at a point) but also to show the standard deviation value for each point. What would be the best method to do this in QGIS (I'm a basic user!). I do not have ±100 points. I am imagining a point with size = biomass and a buffer showing SDev, but I don't know how to do this.
The next step would be to show the breakdown of values in each point by species (about 5 species biomass values making up the total biomass at each point). Would the best way be with a pie graph per point? And how to show each StDev?
I am using QGIS, Manifold and (less often) SAGA. Any suggestions welcome, many thanks