This is the most basic parallel coordinates chart you can build with
R
, the ggally
packages and its
ggparcoord()
function.
The input dataset must be a data frame with several numeric
variables, each being used as a vertical axis on the chart. Columns
number of these variables are specified in the columns
argument of the function.
Note: here, a categoric variable is used to color lines, as
specified in the groupColumn
variable.
# Libraries
library(GGally)
# Data
data <- iris
# Plot
ggparcoord(data,
columns = 1:4, groupColumn = 5
) + theme_bw()
This document is a work of the statistics team in the Biostatistics and Medical Information Department at Saint-Louis Hospital in Paris (SBIM).
Developed and updated by Noémie Bigot and Anouk Walter-Petrich
noemie.bigot@aphp.fr; anouk.walter-petrich@u-paris.fr
Based on The R Graph Gallery by Yan Holtz.