A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportions. It depicts a special chart that uses "pie slices", where each sector shows the relative sizes of data. A circular chart cuts in the form of radius into segments describing relative frequencies or magnitude also known as a circle graph. R Programming Language uses the function pie() to create pie charts. It takes positive numbers as a vector input.
Syntax
pie(x, labels, radius, main, col, clockwise)
Parameters:
- x: A vector of numeric values for the pie chart.
- labels: Descriptions for the pie chart slices.
- radius: Defines the radius of the pie chart (value between -1 and +1).
- main: Title of the pie chart.
- clockwise: Logical value determining if slices are drawn clockwise or anticlockwise.
- col: Colors for the pie chart slices.
1. Creating a simple pie chart
To create a simple R pie chart we can use the above parameters. It can be described by giving simple labels.
Example:
geeks<- c(23, 56, 20, 63)
labels <- c("Mumbai", "Pune", "Chennai", "Bangalore")
pie(geeks, labels)
Output:
1.1 Pie chart including the title and colors
To create a color and title pie chart.
- Take all parameters which are required to make a R pie chart by giving a title to the chart and adding labels.
- We can add more features by adding more parameters with more colors to the points.
Example:
geeks<- c(23, 56, 20,