I am working on a data set which is looking at total number of fish landings in accordance with vessel length within the North Sea. After plotting the data I want to be able to categorize total number of fish landings in accordance to the length of the vessel.
I have attempted to use the
Expression String Builder within the
Rule-based symbol in
symbology, in which there are four categories available
>=15. I want to be able to plot the length
LENGTH_GP of the vessel to total number of fish landings, with each category displaying a different colour.
Does anyone have any suggestions to this issue?