Syntax error How to change the tick size using ggplot2 in R?

How to change the tick size using ggplot2 in R?

To change the tick size using ggplot2, we can use theme function with argument axis.ticks.length. For example, if we have a data frame called df that contains two columns say x and y then the scatterplot between x and y with larger size of tick marks can be created by using the below command −

ggplot(df,aes(x,y))+geom_point()+theme(axis.ticks.length=unit(0.8,"inch"))

Example

Consider the below data frame −

 Live Demo

x<-rnorm(20)
y<-rnorm(20)
df<-data.frame(x,y)
df

Output

      x              y
1   2.5494830  -0.587904992
2  -0.5864972   0.006669457
3   0.9554755  -3.925291145
4   0.6686948  -2.326550523
5  -0.3267310   0.738981444
6  -0.8751193  -0.438232843
7   0.5477108   0.214512133
8  -0.4767738   0.451001999
9  -0.5364709   0.335897135
10   0.5853087 -0.665692002
11 -1.7818255   0.944527193
12 -0.9670748   0.639372414
13  0.4873353   0.466036727
14  0.3669196   2.732934553
15  0.9450203  -0.201909686
16 -1.1646289  -0.533447384
17 -1.8637459   1.186856615
18 -1.5751590  -1.154048208
19 -0.2266776   1.813758654
20 -0.7125976   0.251823020

Loading ggplot2 package and creating scatterplot between x and y with default size of tick marks −

Example

library(ggplot2)
ggplot(df,aes(x,y))+geom_point()

Output

Creating scatterplot between x and y with larger size of tick marks −

Example

ggplot(df,aes(x,y))+geom_point()+theme(axis.ticks.length=unit(0.2,"inch"))

Output

Example

ggplot(df,aes(x,y))+geom_point()+theme(axis.ticks.length=unit(0.50,"cm"))

Output

Updated on: 2021-03-16T10:31:50+05:30

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