colorschemes: Favorite Colorschemes

In vladpetyuk/vp.misc: Miscellaneous functions used by Vlad Petyuk for proteomics data analysis

Description

Provides more colorscheme options in addition to basic ones: heat.colors, rainbow and so on. Hot and jet colorschemes are analagous to the MATLAB colorschemes with the same names. Blue and dusk colorschemes correspond to RColorBrewer "Blues" and inverse "RdYlBu".

Usage

blue.colors(n)

dusk.colors(n)

hot.colors(n)

hot2.colors(n)

jet.colors(n)

jet2.colors(n)

Arguments

n	Number of different colors in the colorscheme

Value

Vector of colors as hex RGB strings

Functions

• blue.colors: based on RColorBrewer "Blues"

• dusk.colors: based on reverse of RColorBrewer "RdYlBu". Looks like a dusk.

• hot.colors: based on Matlab's "hot"

• hot2.colors: similar to Matlab's "hot"

• jet.colors: based on Matlab's "jet"

• jet2.colors: similar to Matlab's "jet"

Examples

## Linear
image(as.matrix(1:100), col=blue.colors(100))
image(as.matrix(1:100), col=dusk.colors(100))
image(as.matrix(1:100), col=hot.colors(100))
image(as.matrix(1:100), col=hot2.colors(100))
image(as.matrix(1:100), col=jet.colors(100))
image(as.matrix(1:100), col=jet2.colors(100))

## Random
N <- 10
set.seed(0)
mat <- matrix(rnorm(N^2), ncol=N)
image(mat, col=blue.colors(N^2))
image(mat, col=dusk.colors(N^2))
image(mat, col=hot.colors(N^2))
image(mat, col=hot2.colors(N^2))
image(mat, col=jet.colors(N^2))
image(mat, col=jet2.colors(N^2))

## Airy pattern
x <- seq(-1,+1,length=100)
z <- outer(x,x,function(x,y){sin(10*sqrt(x^2+y^2))})
image(z, col=blue.colors(100))
image(z, col=dusk.colors(100))
image(z, col=hot.colors(100))
image(z, col=hot2.colors(100))
image(z, col=jet.colors(100))
image(z, col=jet2.colors(100))

vladpetyuk/vp.misc documentation built on June 25, 2021, 6:35 a.m.