如何设置使用plot()标记x轴的方式? [英] How do I set what plot() labels the x-axis with?

问题描述

我有一个我要绘制的plot()，但我不想将x值用作轴标签...我想要一个不同的字符向量，我想将其用作标签，以标准的方式:使用尽可能多的东西，丢弃其他东西，等等.我该如何传递给plot()来做到这一点?

I have a plot() that I'm trying to make, but I do not want the x-values to be used as the axis labels...I want a different character vector that I want to use as labels, in the standard way: Use as many as will fit, drop the others, etc. What should I pass to plot() to make this happen?

例如，考虑

d <- data.frame(x=1:5,y=10:15,x.names=c('a','b','c','d','e'))

在小节中，我会通过barplot(height=d$y,names.arg=d$x.names)，但是在这种情况下，实际的x值很重要.所以我想要一个类似plot(x=d$x,y=d$y,type='l',names.arg=d$x.names)的类似物，但这不起作用.

In barplot, I would pass barplot(height=d$y,names.arg=d$x.names), but in this case the actual x-values are important. So I would like an analog such as plot(x=d$x,y=d$y,type='l',names.arg=d$x.names), but that does not work.

推荐答案

我想您首先要使用xaxt ="n"选项取消x轴上的标签:

I think you want to first suppress the labels on the x axis with the xaxt="n" option:

plot(flow~factor(month),xlab="Month",ylab="Total Flow per Month",ylim=c(0,55000), xaxt="n")  

然后使用axis命令添加您自己的标签.此示例假定标签位于名为month.name

then use the axis command to add in your own labels. This example assumes the labels are in an object called month.name

axis(1, at=1:12, labels=month.name) 

我必须查找如何执行此操作，并且

I had to look up how to do this and I stole the example from here.

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