在 R 中突出显示图形上的特定范围

Question

library(season)
plot(CVD$yrmon, CVD$cvd, type = 'o',pch = 19,ylab = 'Number of CVD deaths per month',xlab = 'Time')

如果我想根据 1994-1998 年的 x 值突出显示图形区域，我该怎么做？

如有任何想法，我们将不胜感激谢谢

Answer 1

您可以将该范围内的点涂成另一种颜色，

plot(CVD$yrmon, CVD$cvd, type = 'o',pch = 19,ylab = 'Number of CVD deaths per month',xlab = 'Time')
points(cvd ~ yrmon, type="o", pch=19, col="red", 
       data=CVD[CVD$yrmon >= 1994 & CVD$yrmon <= 1998,])

Answer 2

或者您可以在感兴趣的区域上放置一个矩形：

rect(xleft=1994,xright = 1998,ybottom=range(CVD$cvd)[1],ytop=range(CVD$cvd)[2], density=10, col = "blue")

在 R 中突出显示图形上的特定范围

Highlighting specific ranges on a Graph in R

r

graph

highlight