Basic scatterplot using <code>geom_point()</code>

A scatterplot displays the values of two variables along two axes. It shows the relationship between them, eventually revealing a correlation.

Here the relationship between Sepal width and Sepal length of several plants is shown.

It illustrates the basic utilization of ggplot2 for scatterplots:

1 - provide a dataframe
2 - tell which variable to show on x and y axis
3 - add a geom_point() to show points.

# Library
library(ggplot2)
 
# The iris dataset is provided natively by R
#head(iris)
 
# basic scatterplot
ggplot(iris, aes(x=Sepal.Length, y=Sepal.Width)) + 
    geom_point() + theme_bw()

Contact

This document is a work of the statistics team in the Biostatistics and Medical Information Department at Saint-Louis Hospital in Paris (SBIM).
Based on The R Graph Gallery by Yan Holtz.

SBIM