我试图找出如何将点和线(颜色)添加到R中的图例。
我想要绘制的内容是这样的:
x = 1:10
y = sin(x)
z = cos(x)
plot(x,y,type='l',lty=2,col="blue")
points(x,z,pch=19,col="red")
#I know this legend command doesn't work, but I just want to explain what I want
legend("topleft",c("x","y"),pch=19,lty=2,col=c("red","blue")
正如您所看到的,我希望能够在图例中同时拥有点和线(具有正确的类型和颜色)。
答案 0 :(得分:4)
您将NA值作为pch=
和lty=
的其他参数。
legend("topleft",c("x","y"),pch=c(19,NA),lty=c(NA,2),col=c("red","blue"))