R: Create colors in a red-yellow-blue color scheme

oceColors9B {oce} | R Documentation

## Create colors in a red-yellow-blue color scheme

### Description

The results are similar to those of `oceColorsJet()`, but with white hues in the centre, rather than green ones. The scheme may be useful in displaying signed quantities, and thus is somewhat analogous to `oceColorsTwo()`, except that they (average) eye may be more able to distinguish colors with `oceColors9B`.

### Usage

    oceColors9B(n)

### Arguments

`n` | number of colors

### References

The following references provide information on choosing colour schemes, that are suitable for viewers who have colour deficiencies.

Light, Adam, and Patrick J. Bartlein. "The End of the Rainbow? Color Schemes for Improved Data Graphics." Eos, Transactions American Geophysical Union 85, no. 40 (2004): 385. DOI: 10.1029/2004EO400002

Stephenson, David B. "Comment on 'Color Schemes for Improved Data Graphics', by A Light and P.J. Bartlein." Eos, Transactions American Geophysical Union 86, no. 20 (2005): 196. DOI: 10.1029/2005EO200005

Light, Adam, and Patrick J. Bartlein. "Reply to 'Comment on Color Schemes for Improved Data Graphics,' by A. Light and P.J. Bartlein'." Eos, Transactions American Geophysical Union 86, no. 20 (2005): 196–196. DOI: 10.1029/2005EO200006

### See Also

Other things related to colors: `colormapGMT()`, `colormap()`, `oceColorsCDOM()`, `oceColorsChlorophyll()`, `oceColorsClosure()`, `oceColorsDensity()`, `oceColorsFreesurface()`, `oceColorsGebco()`, `oceColorsJet()`, `oceColorsOxygen()`, `oceColorsPAR()`, `oceColorsPalette()`, `oceColorsPhase()`, `oceColorsSalinity()`, `oceColorsTemperature()`, `oceColorsTurbidity()`, `oceColorsTurbo()`, `oceColorsTwo()`, `oceColorsVelocity()`, `oceColorsViridis()`, `oceColorsVorticity()`, `ocecolors`

### Examples

    library(oce)
    imagep(volcano, col=oceColors9B(128),
           zlab="oceColors9B")

[Package oce version 1.7-2 Index]