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## rotating axis labels in R

### Question

In R, how do I make a (bar)plot's y axis labels parallel to the X axis instead of parallel to the Y axis?

2009/12/01
1
158
12/1/2009 8:35:33 PM

### Accepted Answer

Not sure if this is what you mean, but try setting `las=1`. Here's an example:

``````require(grDevices)
tN <- table(Ni <- stats::rpois(100, lambda=5))
r <- barplot(tN, col=rainbow(20), las=1)
`````` That represents the style of axis labels. (0=parallel, 1=all horizontal, 2=all perpendicular to axis, 3=all vertical)

2016/10/23
179
10/23/2016 7:06:49 PM

As Maciej Jończyk mentioned, you may also need to increase margins

``````par(las=2)
par(mar=c(8,8,1,1)) # adjust as needed
plot(...)
``````
2015/01/25

You need to use theme() function as follows rotating x-axis labels by 90 degrees:

``````ggplot(...)+...+ theme(axis.text.x = element_text(angle=90, hjust=1))
``````
2019/11/14

First, create the data for the chart

``````H <- c(1.964138757, 1.729143013,    1.713273714,    1.706771799,    1.67977205)
M <- c("SP105", "SP30", "SP244", "SP31",    "SP147")
``````

Second, give the name for a chart file

``````png(file = "Bargraph.jpeg", width = 500, height = 300)
``````

Third, Plot the bar chart

``````barplot(H,names.arg=M,ylab="Degree ", col= rainbow(5), las=2, border = 0, cex.lab=1, cex.axis=1, font=1,col.axis="black")
title(xlab="Service Providers", line=4, cex.lab=1)
``````

Finally, save the file

``````dev.off()
``````

Output: 2018/10/20

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