How to Create Radar Charts in R?

Last Updated : 28 Feb, 2023

In this article, we are going to see how to create Radar Charts in R Programming Language.

Radar charts are also known as Spider or Web or Polar charts. It is a graphical graph to display multivariate data in form of 2D charts of three or more quantitative variables which are represented on axes starting from the same point

Dataset in use:

Mumbai Tamil Noida Kerala Patna Assam Ranchi Bhopal Delhi Indore

1 39 39 39 39 39 39 39 39 39 39

2 0 0 0 0 0 0 0 0 0 0

3 2 7 5 5 9 18 7 7 10 19

fmsb package is Several utility functions and it has radarchar() methods to create radar chart in R.

To install the package:

install.packages( fmsb )

Creating a Basic Radar chart in R

Here we will display the basic radar chart using radarchart() methods. For this, we will pass the created dataframe.

Syntax: radarchart(df, cglty, cglcol, cglwd, pcol, plwd)

Parameters:

df is a dataframe
pcol attributes is used to change the color of the Polygon line.
plwd attributes is used to increase or decrease the line width of the Polygon.
cglcol is used to draw color of the net
cglwd is for net width

Example: Basic Radar Chart

data <- as.data.frame(matrix( sample( 2:20 , 10 ,
                                     replace=T) ,
                             ncol=10))

colnames(data) <- c("Mumbai" , "Tamil" , "Noida" ,
                    "Kerala" , "Patna", "Assam" ,
                    "Ranchi" , "Bhopal", "Delhi", 
                    "Indore" )
 
data <- rbind(rep(39,10) , rep(0,10) , data)

# Library
library(fmsb)

# The default radar chart 
radarchart(data)

Output:

Line Color Customization

pcol attributes are used to change the color of the Polygon line.

Example: Line color customization

data <- as.data.frame(matrix( sample( 2:20 , 10 ,
                                     replace=T) ,
                             ncol=10))

colnames(data) <- c("Mumbai" , "Tamil" , "Noida" ,
                    "Kerala" , "Patna", "Assam" ,
                    "Ranchi" , "Bhopal", "Delhi", 
                    "Indore" )
 
data <- rbind(rep(39,10) , rep(0,10) , data)

radarchart(data, pcol = "Green")

Output:

Fill Color into Polygon

pfcol attributes is used to fill the color of the Polygon.

Example: Fill color

data <- as.data.frame(matrix( sample( 2:20 , 10 ,
                                     replace=T) ,
                             ncol=10))

colnames(data) <- c("Mumbai" , "Tamil" , "Noida" ,
                    "Kerala" , "Patna", "Assam" ,
                    "Ranchi" , "Bhopal", "Delhi", 
                    "Indore" )
 
data <- rbind(rep(39,10) , rep(0,10) , data)

# Library
library(fmsb)

radarchart(data, pfcol = "Green")

Output:

Change the line width

plwd attributes is used to increase or decrease the line width of the Polygon.

Example: Change line width

data <- as.data.frame(matrix( sample( 2:20 , 10 ,
                                     replace=T) ,
                             ncol=10))

colnames(data) <- c("Mumbai" , "Tamil" , "Noida" ,
                    "Kerala" , "Patna", "Assam" ,
                    "Ranchi" , "Bhopal", "Delhi", 
                    "Indore" )
 
data <- rbind(rep(39,10) , rep(0,10) , data)

# Library
library(fmsb)

radarchart(data, plwd = 3)

Output:

Grid Features in radarchart

Following attributes are used for Grids:

cglcol is used to draw the color of the net
cglty is for get net line type
axislabcol is for the color of axis labels
caxislabels is for the vector of axis labels to display
cglwd is for net width