我有两个ggplots。我可以以某种方式将它们画在一张照片上吗?一个作为另一个我的代码的背景:
ggplot(data = dd, aes(x = x, y = y)) +
+ geom_point(colour="red", size = 3, aes(alpha=col))
ggplot(data=df, aes(x=x, y=y)) + geom_segment(aes(xend=x+dx, yend=y+dy), arrow = arrow(length = unit(0.3,"cm")))
谢谢