我已经生成了一个带plot功能的情节.我添加了点标记pch()和行类型lty.在图例部分,我想将点和线合并在一起.我用过,merge=TRUE但没用.它仅显示线型.同样的事情merge=FALSE.在这两种情况下,框图例框宽度只有轻微的变化.这就对了.任何的想法？
以下是示例代码:
m<-1:10
n<-runif(1:5)
plot(m,type = "o", col="blue",main = "plot",xlab = "distance",ylab = "height")
lines(n+2,type="o", pch=22,lty=6,col="red")
lines(m-3,type="o", pch=17,lty=5,col="forestgreen")
legend(x=2,y=8,c("R","S","T"),lty=c(1,6,5),pch=c(5,22,17),
cex=.8, col=c("blue","red","forestgreen"),merge = FALSE)