image thumbnail

imagescnan.m v2.1 (Aug 2009)

version 1.2.0.0 (5.76 KB) by Carlos Adrian Vargas Aguilera
Same as IMAGESC but ignores NaNs.

7.1K Downloads

Updated 20 Aug 2009

View License

Syntax:
>> imagescnan(Z) % Uncolored NaNs
>> imagescnan(Z,'k') % Colored

IMAGESC is a good option when the user doesn't like the interpolating behaviour of SURF or PCOLOR, because EVERY element is drawn as a single pixel CENTERED with the axis value.

The problem with this function is that it doesn't work properly with NaNs elements (although sometimes SURF neither does): they are drawn with the lower color of the current colormap.

This functions uses IMAGESC but ignores the NaNs elements.

The user can specify the NaNs color, a different color mask, or another value to be ignored.

If the user gives X and Y data with no constant increment, PATCH is used instead of IMAGESC (this is experimental!).

To freeze the colormap check COLORFREEZE and CBFREEZE here at the FileExchange.

(Bugs reports and suggestions will be very appreciated)

Cite As

Carlos Adrian Vargas Aguilera (2021). imagescnan.m v2.1 (Aug 2009) (https://www.mathworks.com/matlabcentral/fileexchange/20516-imagescnan-m-v2-1-aug-2009), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2008b
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!