How to plot data from different cases in the same graph?
 

I am simulating non-isothermal lid driven cavity problem for different lid velocities. I want to plot temperature values at the centre vs lid velocity. I obtained temperature values at the centres as separate files using probes utility function and also in paraView using probeLocation. The problem is I do not know how to plot them? How can I combine those results from different cases in the same plot?

one way to go would be to export your data from paraview to excel and then do your plotting there.
watch this for that:
https://www.youtube.com/watch?v=bJTSKaxG58Y