hue.range.split: Split a hue range according to 'split.tbl'
In bennop/clusterLUTs: Color lookup ables for use with hierarchical clustering

Description Usage Arguments Details Value Author(s) Examples

A hue range is defined by a lower and an upper hue bound, given either as 2-element vector or a 2xN matrix where each column defines such a range.

1	hue.range.split(hue.range, split.tbl, blank = 0.1, ...)

`hue.range`	hue range vector or matrix
`split.tbl`	vector (possibly result of `table`) giving the weights of the splits (or list of such vectors applied to corresponding matrix colunm)
`blank`	which fraction of the range should be left blank
`...`	ignored

The splits are defined by split.tbl, a vector giving the the relative weights (corresponding to "width" in colorspace) to be given to the individual splits.

The spacing between split ranges is defined by blank where a fraction of blank of the original range is divided among the splits. Thus, for an n-element vector split.tbl, each split covers blank/(n-1) of the range and the remaining "area" is dived among the n splits according to their weights speecified in split.tbl. See the examples.

In either case, blank is assumed to be a "global" parameter across all hue ranges.

a hue range vector (only one split) or matrix

Benno Pütz puetz@psych.mpg.de

hm2 <- hue.range.split(c(0,5/6), 4:2) # matrix(c(0, 4,5,11,12,20)/24, nr = 2)
##           [,1]      [,2]      [,3]
## [1,] 0.0000000 0.2083333 0.5000000
## [2,] 0.1666667 0.4583333 0.8333333
hm3 <- hue.range.split(hm2, list(c(2,1,1), 3, c(1,1)))
##       [,1]       [,2]      [,3]      [,4] [,5]      [,6]
## [1,] 0.000 0.08333333 0.1291667 0.2083333 0.50 0.6833333
## [2,] 0.075 0.12083333 0.1666667 0.4333333 0.65 0.8333333