I used ggplot to output two pictures. They share the same x-scale.
The problem is that the two x-scales don't align accurately. I wonder which argument should I use to get the horizontal alignment of the two x-scales.
I used ggplot to output two pictures. They share the same x-scale.
The problem is that the two x-scales don't align accurately. I wonder which argument should I use to get the horizontal alignment of the two x-scales.