README.md

In kazeera/kazcolors: Colour functions for consistent colors in R.

kazcolors

The goal of kazcolors is to quickly acquire color vectors (named palettes and colors for heatmaps/correlations/any scaled values) via the RColorBrewer package and colorRampPalette function.

Installation

You can install the latest version from Github:

devtools::install_github("kazeera/kazcolors", upgrade_dependencies = FALSE)

How to Use

Load package.

library(kazcolors)
library(dplyr)

Quick example. Link together.

get_col_pal("RdBu") %>%
  get_col_grad(n=3) %>%
  scales::show_col()

Note: use show_col() from scales package to show palette (vector of color HEX codes/names)

3 functions:

1. Get color palette in the form of colorRampPalette color interpolation functions. Use with get_col_gradient() or get_element_colors() from this package.

# Make a color palette of red to blue (RColorBrewer)
# The two lines of code below are equivalent
get_col_palette(brew_pal="RdBu")
colorRampPalette(RColorBrewer::brewer.pal(9, "RdBu"))

# Reverse the palette (i.e. blue to red)
get_col_palette(brew_pal="RdBu", rev=T)

# Make a custom color palette of forestgreen to darkorchid4 (RColorBrewer)
# The two lines of code below are equivalent
get_col_palette(custom=c("forestgreen", "darkorchid4"))
colorRampPalette(c("forestgreen", "darkorchid4"))

1. Get color gradient for a colorRampPalette with n number of colors.

x <- LETTERS[1:6]

# The three lines of code below are equivalent
get_col_gradient(get_col_palette("RdBu"), 100)
get_col_palette("RdBu")(100)
colorRampPalette(RColorBrewer::brewer.pal(9, "RdBu"))(100)

1. Get colors for a named vector based on a color palette.

x <- LETTERS[1:6]
get_element_colors(x, get_col_palette("RdBu"))
get_element_colors(x, colorRampPalette(RColorBrewer::brewer.pal(9, "RdBu")))

kazeera/kazcolors documentation built on Aug. 19, 2021, 11:04 a.m.