R 如何删除图表中出现的文字

发布于10月15日

我试图在单个绘图中绘制时间序列数据类型的2个不同的列，但是显示的年份似乎阻碍了图表的查看.如何删除图表中的年份，以便可以清楚地看到图表？

The below code is how i created the chart

data('fertil3')
fertil = ts(fertil3, frequency = 1, start = 1913)
plot(x = fertil[,"year"], y = fertil[,"gfr"], type="l", col="red", ylim = c(0, 250), xlab="Time", ylab="")
par(new=TRUE)
plot(x = fertil[,"year"], y = fertil[,"pe_1"], type="l", col="blue", ylim = c(0, 250),xlab="Time", ylab="")

推荐答案

您应该将时间序列对象ts转换为as.numeric，然后它就是一个矢量，并可用于绘制如下所示的线条:

library(wooldridge)
data('fertil3')
fertil = ts(fertil3, frequency = 1, start = 1913)
plot(x = as.numeric(fertil[,"year"]), y = as.numeric(fertil[,"gfr"]), type="l", col="red", ylim = c(0, 250), xlab="Time", ylab="")
par(new=TRUE)
plot(x = as.numeric(fertil[,"year"]), y = as.numeric(fertil[,"pe_1"]), type="l", col="blue", ylim = c(0, 250),xlab="Time", ylab="")