How to visualize the matrix with colored entries
132 views (last 30 days)
Show older comments
Commented: Fatemeh Sadeghihassanabadi on 4 May 2021
Dear all, I have a matrix with some suspicious entries. I would like to show all entries (all numbers) and color by red my suspicious data. I have no idea how to do it:( Thanks!
Kye Taylor on 17 Jun 2013
Edited: Kye Taylor on 17 Jun 2013
What are the features that make your data suspicious? For example, if the suspicious data is all very large (say 2 standard deviations larger than the average datum), then you could try something like
% a proxy for your matrix
dataMatrix = randn(100,100);
% logical variable
isSuspect = dataMatrix > mean(dataMatrix(:))+2*std(dataMatrix(:));
% create an image where each pixel represents an entry in dataMatrix.
% the pixel will be red if isSuspect(i,j) is true
% or (less exciting)
Fatemeh Sadeghihassanabadi on 4 May 2021
you can also try heatmap function:
Find more on Numeric Types in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!Start Hunting!