How to visualize the matrix with colored entries
63 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
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!
2 commentaires
Réponses (1)
Kye Taylor
le 17 Juin 2013
Modifié(e) : Kye Taylor
le 17 Juin 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
figure
imagesc(isSuspect.*dataMatrix)
% or (less exciting)
figure
imagesc(isSuspect)
2 commentaires
Fatemeh Sadeghihassanabadi
le 4 Mai 2021
you can also try heatmap function:
https://www.mathworks.com/help/matlab/ref/heatmap.html
Voir également
Catégories
En savoir plus sur 3-D Volumetric Image Processing dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!