Draw Venn diagram with squares, with match/mismatch in overlapping area.
VennSquares(count, BL = c(0, 0), COL, withText = TRUE, withLegend = FALSE)
a length 5 named vector: 'Total', 'Match', 'Mismatch', 'P1only', and 'P2only'.
a length 2 vector with coordinates of bottom-mid of Ped1 square.
a length 4 character vector with colours, named 'Match', 'Mismatch', 'Ped1', 'Ped2'.
logical, add count to each rectangle.
logical, add legend at the bottom of the plot.
PlotPedComp