I was trying to use
Grid to align different plots, two on the first row, and only one in the second row, so I have something like this (where a,b and c are plots):
The problem is, I would like for the 'c' plot to be aligned directly below the union of 'a' and 'b', and not the default placement right below 'a' leaving nothing below 'b'. How could I do this? I can't seem to find an option for it or another question like mine.