How to plot a function with ggplot2 in R?

Plotting a function is very easy with curve function but we can do it with ggplot2 as well. Since ggplot2 provides a better-looking plot, it is common to use it for plotting instead of other plotting functions. To plot a function, we should specify the function under stat_function in ggplot.

Example

Consider the below data frame −

> x<-1:10
> df<-data.frame(x)

Loading ggplot2 package −

> library(ggplot2)

Plotting of functions is as shown below:

> ggplot(df,aes(x))+
+ stat_function(fun=function(x) log(x))

> ggplot(df,aes(x))+
+ stat_function(fun=function(x) log(x)/x)

Output

> ggplot(df,aes(x))+
+ stat_function(fun=function(x) log(x)/(x-3))

Output

> ggplot(df,aes(x))+
+ stat_function(fun=function(x) (exp(x)^2)*2)

Output

Nizamuddin Siddiqui

Updated on: 12-Aug-2020

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