CODEWITHSUNDEEP
matlab
SMH
SMH

Reputation: 1316

Change the color of the bar of histogram in Matlab

I am trying to print a Histogram but I need all the values which is bigger than a specific value(250 for example) to be in orange.

The output is: enter image description here

and I need it to be something like that : enter image description here Any Help, This is the code:

    fh = figure;
    hist(PZ);
    saveas(fh, strcat('Figures\window), 'jpg')
    close(fh);

Upvotes: 0

Views: 3159

Answers (2)

Dev-iL
Dev-iL

Reputation: 24169

One way to go about this is using bar to plot your data, but in this case you are limited to the colors it provides, which are: 'b' | 'r' | 'g' | 'c' | 'm' | 'y' | 'k' | 'w'. Here's a sample code to do that:

%// Generate data
data = randn(2000,1);
bins = -5:5;
[N,X] = hist(data,bins);
%% //Color by count
LIMIT_VAL = 500;
figure();
bar(X,N,'b');hold on;
bar(X,N.*(N<LIMIT_VAL),'r'); hold off;
%% //Color by bin position
LIMIT_VAL = 2;
figure();
bar(X,N,'b');hold on;
bar(X(abs(X)>=LIMIT_VAL),N(abs(X)>=LIMIT_VAL),'r'); hold off;

Another way is by modifying the patch color as was mentioned by @lakesh.

Upvotes: 1

lakshmen
lakshmen

Reputation: 29064

I would split the data into two groups.Values greater than 250 and values lesser than 250. Both in absolute values.

Then, can you this code to set the color of histogram to be different

hist(data1);
hold on;
hist(data2);
h = findobj(gca,’Type’,’patch’);
display(h) 
set(h(1),’FaceColor’,’b’,’EdgeColor’,’k’);
set(h(2),’FaceColor’,rgb('orange'),’EdgeColor’,’k’);

Upvotes: 1

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