color palettes

Returns color(s) that are a linear interpolation of a given set of colors.

intpalette(inputcol, numcol = length(x.to), x.from = NULL, x.to = NULL)

Arguments

inputcol

initial colors, *from* where to interpolate.

numcol

number of colors to interpolate *to*.

x.from

x-values *from* where to interpolate.

x.to

x-values where to interpolate *to*.

Value

a vector of character strings giving the interpolated colors in hexadecimal format

Author

Karline Soetaert <karline.soetaert@nioz.nl>

Details

Return value is a vector of *colors* in hexadecimal format.

This is different from colorRamp(R function), that returns a *function*

See also

greycol, femmecol, shadepalette, colorRamp for comparable R function

Examples

intpalette(c("white", "black"), n = 10)
#>  [1] "#FFFFFF" "#E3E3E3" "#C6C6C6" "#AAAAAA" "#8E8E8E" "#717171" "#555555"
#>  [8] "#393939" "#1C1C1C" "#000000"
grey(seq(1, 0, length.out = 10))
#>  [1] "#FFFFFF" "#E3E3E3" "#C6C6C6" "#AAAAAA" "#8E8E8E" "#717171" "#555555"
#>  [8] "#393939" "#1C1C1C" "#000000"
image(matrix(nrow = 1,ncol = 100, data = 1:100),
      col = intpalette(c("red", "blue"), numcol = 100),
      main = "intpalette")

image(matrix(nrow = 1, ncol = 100, data = 1:100),
      col = intpalette(c("red", "blue", "yellow"), numcol = 100),
      main = "intpalette")