ChemoSpec2D: LofC – R documentation

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LofC

Create a List of Colors

Description

When overlaying multiple 2D NMR spectra, one needs to supply a vector of colors for each spectrum contour, as a list with length equal to the number of spectra to be plotted. This is a convenience function which takes a vector of colors and copies it into a list, ready for use with plotSpectra2D.

Usage

LofC(cols, nspec = 1L, ncon = 1L, mode = 1L)

Arguments

`cols`	Character. A vector of color designations.
`nspec`	Integer. The number of spectra to be plotted.
`ncon`	Integer. The number of contour levels.
`mode`	Integer. How to replicate the colors: If `mode = 1L`, each list element in the return value is a copy of `cols`. Use this mode when you want to use varied colors for the contour levels. `length(cols)` must be the same as the number of contour levels passed to `plotSpectra2D`, possibly via `LofL`. If `mode = 2L`, each list element in the return value is composed of a single color. Use this mode when you want each spectrum to be plotted in its own color. The first list element is `ncon` replicates of `cols[1]`, the second list element is `n` replicates of `cols[2]` etc. `length(cols)` must equal `nspec` in this mode.

Value

A list of length nspec, the number of spectra to be plotted; each entry is a vector of colors.

Examples

mycols <- c("red", "green", "blue")
LofC(mycols, 1, 3, 1)
LofC(mycols, 3, 3, 2)

ChemoSpec2D

Exploratory Chemometrics for 2D Spectroscopy

v0.4.187

GPL-3

Authors

Bryan A. Hanson [aut, cre] (<https://orcid.org/0000-0003-3536-8246>)

Initial release

2021-03-15