In this article, we will learn how to change Axis Scales in the R Programming Language.
Method 1: Change Axis Scales in Base R
To change the axis scales on a plot in base R Language, we can use the xlim() and ylim() functions. The xlim() and ylim() functions are convenience functions that set the limit of the xaxis and yaxis respectively. This function takes a vector as an argument which contains the values of lower axis limit and higher axis limit.
Syntax: plot( df$xaxis, df$yaxis, xlim, ylim)
where,
 df: determines the data frame in use.
 xaxis and yaxis: determine the axis variables for plotting.
 xlim: determines the vector that contains xaxis limits.
 ylim: determines the vector that contains yaxis limits.
Example: Basic example where plot axis limits are set from 0 to 2 for the xaxis and from 18 to 20 for the yaxis.
R

Output:
Output
Convert axis scales to log scale:
To convert the axis scale log scale in the base R plot, we use the log argument of the plot() function. The log argument converts the given axis into its log scale alternative. This helps us in visualizing the skew data frames.
Syntax: plot( df$xaxis, df$yaxis, log)
where,
 df: determines the data frame in use.
 xaxis and yaxis: determine the axis variables for plotting.
 log: determines the axis which has to be converted in log scale.
Example: Basic example where the xaxis has been converted to its log scale alternative.
R

Output:
Output
Method 2: Change Axis Scales in ggplot2
To change the axis scales on a plot made using the ggplot2 package in the R Language, we can use the xlim() and ylim() functions. These functions can be used along with the ggplot() function by adding them using plus(+) symbol The xlim() and ylim() functions are convenience functions that set the limit of the xaxis and yaxis respectively. This function takes a vector as an argument which contains the values of lower axis limit and higher axis limit.
Syntax:
ggplot() + xlim() +ylim()
where,
xlim(): takes two values as input that are lower xaxis limit and higher xaxis limit.
ylim(): takes two values as input that are lower yaxis limit and higher yaxis limit.
Example:
Here, is a basic example of a ggplot2 plot where plot axis limits are set from 0 to 2 for the xaxis and from 18 to 20 for the yaxis.
R

Output:
Output
Convert axis scales to log scale:
To convert the axis scale log scale in the R plot made using the ggplot2 package, we use the scale_y_continuous() and scale_y_continuous() functions along with the trans argument for the xaxis and the yaxis transformation respectively. The trans argument takes a logarithmic identifier as an argument and then converts the axis into the given log scale alternative. This helps us in visualizing the skew data frames.
Syntax: plot + scale_x_continuous( trans ) + scale_y_continuous( trans )
where, trans: determines the exact log scale for transformation
Example: Basic example of a ggplot2 plot where the xaxis has been converted to its log scale alternative.
R

Output:
Output
Last Updated :
19 Dec, 2021
Like Article
Save Article