preview_palette: Preview Palette: Visualize a Palette from RDS

In evanverse: Utility Functions for Data Analysis and Visualization

Preview Palette: Visualize a Palette from RDS

Description

Preview the appearance of a palette from data/palettes.rds using various plot types. This function provides multiple visualization options to help users evaluate color palettes.

Usage

preview_palette(
  name,
  type = c("sequential", "diverging", "qualitative"),
  n = NULL,
  plot_type = c("bar", "pie", "point", "rect", "circle"),
  title = name,
  palette_rds = system.file("extdata", "palettes.rds", package = "evanverse"),
  preview = TRUE
)

Arguments

name	Name of the palette.
type	Palette type: "sequential", "diverging", "qualitative".
n	Number of colors to use (default: all).
plot_type	Plot style: "bar", "pie", "point", "rect", "circle".
title	Plot title (default: same as palette name).
palette_rds	Path to RDS file. Default: system.file("extdata", "palettes.rds", package = "evanverse").
preview	Whether to show the plot immediately. Default: TRUE.

Value

NULL (invisible), for plotting side effect.

Examples

# Preview sequential palette:
preview_palette("seq_blues", type = "sequential", plot_type = "bar")

# Preview diverging palette:
preview_palette("div_fireice", type = "diverging", plot_type = "pie")

# Preview qualitative palette with custom colors:
preview_palette("qual_vivid", type = "qualitative", n = 4, plot_type = "circle")

evanverse documentation built on March 10, 2026, 5:07 p.m.