addscale: function to add a scale to a image plot

In vein: Vehicular Emissions Inventories

function to add a scale to a image plot

Description

method to plot a scale in image plot.

Usage

addscale(
  z,
  zlim = range(z, na.rm = TRUE),
  col = grDevices::heat.colors(12),
  breaks = pretty(zlim),
  horiz = TRUE,
  ylim = NULL,
  xlim = NULL,
  ...
)

Arguments

z	matrix or vector
zlim	z limit
col	color
breaks	interval for the tickmarks
horiz	TRUE (default) to a horizontal scale
ylim	y limitS
xlim	x limit
...	other arguments to plot

Examples

## Not run: 
mat <- matrix(100:1,ncol = 10, byrow = F)
cor <- grDevices::heat.colors(100)
image(mat,axe = FALSE, main = "numbers from 1 to 100", col = cor)
axis(2)
addscale(mat, col = cor)

## End(Not run)

vein documentation built on April 30, 2023, 1:10 a.m.