There are a few questions which sort of touch on this, but I haven't found an answer that is easy yet. I have a database with several columns of metadata. The first column relates to a unique ID I have assigned to point which can be shared among many points. The second column is the original data source of the point which again can be shared by multiple points.
I would like to plot this data so that the unique ID is categorized by colour and data source is categorized by shape. This can be accomplished using rule-based categorization, however I have 70,000 data points with 50 sources and 1500 unique ID's; setting up these rules by hand is not feasible for this project.
Is there a simpler way to do this?
