Remove blank lines from plot geom_tile ggplot

Question

Is there a way to remove the blank lines from a geom_tile plot? If I try scale = \"free\" it looks weird. I want to preserve the width and height of each facet.

Answer 1

You should add argument scales="free_y" to facet_wrap() to remove "empty" lines.

 +facet_wrap(~Group,ncol=1,scales="free_y") 

If you need to have the same width of tiles after removing the "empty" lines then use facet_grid() instead of facet_wrap() with argument space="free".

 +facet_grid(Group~.,scales="free_y",space="free")