本文介绍了如何将x轴标签从一个字符更改为另一个字符?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我对xaxis标签有疑问.与此处讨论的内容相反:
I've got a questions regarding the xaxis labels.In contrast to whats discussed in here:
How to specify the actual x axis values to plot as x axis ticks in R
I plotted a dataframe containing 10 columns. Each one is represented in a boxplot.For the x-axis my labels are Pipe1 till Pipe 10. Now I wanna change those labels to a specific ID for instance this way
windows()
par(mfrow= c(2,1),las=3)
boxplot(output.valid.fast,outline=F, xlab ="Pipes",ylab="RMSE(-)")
axis(1,at=c("Pipe1","Pipe2","Pipe3","Pipe4","Pipe5","Pipe6","Pipe7","Pipe8","Pipe9","Pipe10"),labels=c("1234","2345","3456","4567","5678","6789","78910","891011","9101112","10111213"))
everytime I'm doing so, I receive an error revealing the following:
In axis(1, at = c("Pipe1", "Pipe2", "Pipe3", "Pipe4", "Pipe5", "Pipe6", :
NAs introduced by coercion
What did I do wrong in here? I'd highly appreciate hints or advices.Cheers,Olli
解决方案
Replace at = c("Pipe1", ... , "Pipe10") by at = 1:10.
Example with 2 columns
boxplot(data.frame(Pipe1 = 1:10, Pipe2 = 2:11), xaxt = "n")
axis(1, at = 1:2, labels = c("1234","2345"))
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