Bioinformatics Toolbox™

redgreencmap - Create red and green colormap

Syntax

redgreencmap(Length)

redgreencmap(Length, 'Interpolation', InterpolationValue)

Arguments

Description

redgreencmap(Length) returns a Length-by-3 matrix containing a red and green colormap. Low values are bright green, values in the center of the map are black, and high values are red. Enter either 256 or 64 for Length. If Length is empty, the length of the map will be the same as the length of the colormap of the current figure.

redgreencmap(Length, 'Interpolation', InterpolationValue) lets you set the algorithm for color interpolation. Choices are:

• 'linear'

• 'quadratic'

• 'cubic'

• 'sigmoid' (default)

Note   The sigmoid interpolation is tanh.

Examples

1. Create a MATLAB structure from the microarray data in a GenePix Results (GPR) file, then display an image of the 'F635 Median' field.

   pd = gprread('mouse_a1pd.gpr');
   maimage(pd,'F635 Median')
   

   

2. Reset the colormap of the current figure.

   colormap(redgreencmap)
   

   

See Also

Bioinformatics Toolbox function: clustergram, redbluecmap

MATLAB functions: colormap, colormapeditor

redbluecmap

restrict