Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

How to Make Grouped Bar Plot with Same Bar Width in R

  • Last Updated : 17 Oct, 2021

In this article, we will discuss How to Make Grouped Bar Plot with the Same Bar Width in R Programming Language.

Method  1 : Using position_dodge2(preserve = “single”)

The geom_col() method can be used to add positions to the graph. Dodging preserves the vertical position of an geom while adjusting the horizontal position. The position_dodge2 method is used to work with bars and rectangle. 

 Syntax : 

position_dodge2(width = NULL, preserve = c("total", "single"))

Parameters: 

  • width – Dodging width, when different to the width of the individual elements.
  • preserve – Indicator of whether of not dodging should preserve the total width of all elements at a position or a single element.

Example:



Python3




library("ggplot2")
library("ggforce")
  
  
# creating a data frame
df < - data.frame(col1=sample(rep(c(1, 20, 40), each=26)),
                  col2=sample(rep(c(1: 6), each=13))
                  )
  
# plotting the data
df % >%
ggplot(aes(col1, col2))+
geom_col(position=position_dodge2(preserve="single")) +
labs(title="Equal Bar Widths",
     x="col1", y="col2")


Output

Method 2 : Using barplot method

The barplot() method in base R is used to construct successive bar plots from the given input table or matrix. The widths of the bars are equal unless explicitly specified using the width parameter. 

barplot(data, xlab, ylab)

Parameters : 

  • data – The input data frame
  • xlab – The label for x axis
  • ylab – The label for y axis

Example:

R




# creating a table
df < - table(col1=sample(rep(c(1, 20, 40), each=26)),
             col2=sample(rep(c(1: 6), each=13))
             )
  
  
# plotting the data
# plotting the barplot with equal bar widths
barplot(df, xlab="col1", ylab="col2")


Output




My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!