sequential_pal {igraph}

Sequential palette

Description

This is the ‘OrRd’ palette from https://colorbrewer2.org/. It has at most nine colors.

Usage

sequential_pal(n)

Arguments

n

The number of colors in the palette. The maximum is nine currently.

Details

Use this palette, if vertex colors mark some ordinal quantity, e.g. some centrality measure, or some ordinal vertex covariate, like the age of people, or their seniority level.

Value

A character vector of RGB color codes.

See Also

Other palettes: categorical_pal(), diverging_pal(), r_pal()

Examples

library(igraphdata)
data(karate)
karate <- karate %>%
  add_layout_(with_kk()) %>%
  set_vertex_attr("size", value = 10)

V(karate)$color <- scales::dscale(degree(karate) %>% cut(5), sequential_pal)
plot(karate)