Generate a vector of n contiguous colours, as a red-yellow-green palette.

Takes a numeric value n and returns a character vector of colour HEX codes corresponding to the heat map palette.

Usage

heat_colours(n, alpha, rev = FALSE)

heat_colors(n, alpha, rev = FALSE)

Arguments

n

the number of colors (>= 1) to be in the palette.

alpha

an alpha-transparency level in the range of 0 to 1 (0 means transparent and 1 means opaque)

rev

logical indicating whether the ordering of the colors should be reversed.

Value

A character vector containing the HEX codes and the same length as n is returned.

See also

Other Support: any_idate(), camel_clean(), check_inputs(), cut_hour(), extract_date_range(), extract_hr(), is_date_format(), maxmin(), pairwise_count(), read_preamble(), rgb2hex(), totals_bind(), totals_col(), tstamp(), us_to_space(), wrap()

Examples

barplot(rep(10, 50), col = heat_colours(n = 50), border = NA)


barplot(rep(10, 50), col = heat_colours(n = 50, alpha = 0.5, rev = TRUE),
border = NA)