How to color a range of bins in histogram?

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Yan Liu
Yan Liu el 12 de Feb. de 2016
Comentada: Roman el 21 de Feb. de 2020
Dear scholars,
I have created a simple histogram.
x = rand(10000,1); histogram(x);
I want to color the bins after 0.5 red but I do not know how to do that. Thank you so much for your help.
Pete

Respuestas (1)

Mike Garrity
Mike Garrity el 12 de Feb. de 2016
Usually the most robust way is to create two separate histogram objects:
x = rand(10000,1);
mask = x<.5;
bin_edges = 0:.1:1;
histogram(x(mask),bin_edges);
hold on
histogram(x(~mask),bin_edges,'FaceColor','red');
hold off
Then you can set any properties you like on each of the two objects.
  3 comentarios
Roman
Roman el 21 de Feb. de 2020
How can I do that, when I do not know the binedges in advance. I trid something like:
1.)
mask=cdw(:,2:j)>=100;
hx=histogram(a2,cdw(mask),'Orientation','horizontal','Normalization','probability','Parent',a2,'FaceColor','green');
hold on
hx=histogram(a2,cdw(~mask),'Orientation','horizontal','Normalization','probability','Parent',a2,'FaceColor','red');
hold off
2.)
mask=cdw(:,2:j)>=100;
hx=histogram(a2,cdw(mask),'Orientation','horizontal','Normalization','probability','Parent',a2,'FaceColor','green');
bin_Edges=hx.BinEdges;
hold on
hx=histogram(a2,cdw(~mask),'Orientation','horizontal','Normalization','probability','Parent',a2,'BinEdges',bin_Edges,'FaceColor','red');
hold off
But both do not work properly; around 100 I get an intersection part of bars where colors are on top of each other.
Thanks

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