We at STATWORX work a lot with R and we often use the same little helper functions within our projects. These functions ease our daily work life by reducing repetitive code parts or by creating overviews of our projects. At first, there was no plan to make a package, but soon I realised, that it will be much easier to share and improve those functions, if they are within a package. Up till the 24th December I will present one function each day from
helfRlein. So, on the 16th day of Christmas my true love gave to me…
What can it do?
This little helper is an addition to yesterday's
sci_palette(). We picked colors 1, 2, 3, 5 and 10 to create a flexible color palette. If you need 100 different colors – say no more!
How to use it?
In contrast to
sci_palette() the return value is a character vector. For example if you want 16 colors:
 "#013848" "#004C63" "#00617E" "#00759A" "#0087AB" "#008F9C" "#00978E" "#009F7F"  "#219E68" "#659448" "#A98B28" "#ED8208" "#F36F0F" "#E45A23" "#D54437" "#C62F4B"
If we now plot those colors, we get a nice rainbow like color gradient.
library(ggplot2) ggplot(plot_data, aes(x = X, y = Y)) + geom_point(pch = 16, size = 15, color = statworx_palette(16)) + theme_minimal()
An additional feature is the
reorder parameter, which samples the color's order so that neighbours might be a bit more distinguishable. You can also use other colors from
ggplot(plot_data, aes(x = X, y = Y)) + geom_point(pch = 16, size = 15, color = statworx_palette(16, basecolors = c(4,8,10))) + theme_minimal()
Have a merry advent season!