Axis scale in R software : minimum, maximum and log scale


The goal of this article is to show you how to set x and y axis limites by specifying the minimum and the maximum values of each axis. We’ll also see in this this tutorial how to set the log scale.

Arguments

The following plot parameters can be used :

  • xlim: the limit of x axis; format : xlim = c(min, max)
  • ylim: the limit of y axis; format: ylim = c(min, max)

Transformation to log scale:

  • log = “x”
  • log = “y”
  • log = “xy”*

log : character indicating if x or y or both coordinates should be plotted in log scale.

Examples

x<-1:10; y=x*x
# Simple graph
plot(x, y)
# Enlarge the scale
plot(x, y, xlim=c(1,15), ylim=c(1,150))
# Log scale
plot(x, y, log="y")

Logiciel R : Echelle des axesLogiciel R : Echelle des axesLogiciel R : Echelle des axes

Infos

This analysis has been performed using R statistical software (ver. 3.1.0).


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