ggplot2 is a data visualization package for the statistical programming language R. This article discusses how can we change line width in ggplot2. For this, only the size parameter in the geom_line() function has to be initialized to the required value.
Syntax:
geom_line(mapping=NULL, data=NULL, stat=”identity”, position=”identity”,…)
Approach
- Import module
- Create data frame
- Create plot with a line
- Display plot
Let us first draw a regular plot so that the difference is better understandable and apparent.
Example:
R
library(ggplot2)
data <- data.frame(
name=c("A","B","C","D","E"),
value=c(3,12,5,18,45)
) # For Create a simple line graph ggplot(data, aes(x=name, y=value, group=1)) +
geom_line()
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Output:
Simple line graph using ggplot2
Setting the required value to the size parameter of geom_line() will produce a line plot of the required width.
Example:
R
library(ggplot2)
data <- data.frame(
name=c("A","B","C","D","E"),
value=c(3,12,5,18,45)
) # For create line graph with change of size and color. ggplot(data, aes(x=name, y=value, group=1)) +
geom_line(size=3, color="green")
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Output:
Modified Line Graph using ggplot2
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