I want to set the curved boundaries for the plot output, using the RegionFunction option in the ListContourPlot command. But I am not getting the intended result, as clearly seen from the Mathematrica notebook that I have attached. I have a data set for which I want to generate a ListContourPlot.
I checked that the RegionFunction option in the ContourPlot command works well, but the RegionPlot command does not correctly show the boundaries.
