How can I draw a histogram of my data?
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Serhat Sayim
on 25 Apr 2021
Edited: Scott MacKenzie
on 25 Apr 2021
I have 1x720 data. I determined my threshold value as 3 for these data. I want to draw a histogram. I want to write as wheeze if the values in this histogram are less than 3, and non wheeze if they are greater than 3. I want it to look like the sample histogram below. How can I do this? Thank you.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/596430/image.png)
4 Comments
Image Analyst
on 25 Apr 2021
Do you want to make it easy for people to help you by attaching your actual data? Or should they just use something like
data = 6 * rand(1, 720);
Accepted Answer
Scott MacKenzie
on 25 Apr 2021
Edited: Scott MacKenzie
on 25 Apr 2021
load data; % loads data into vector mci
threshold = 3;
upper = ceil(max(mci));
d = histcounts(mci, 0:upper);
bar(1:threshold, d(1:threshold), 'facecolor', 'k');
axis([0 upper 0 max(d)*1.05]);
hold on;
bar(threshold+1:upper, d(threshold+1:upper), 'facecolor', 'w');
set(gca,'ticklength', [0 0]);
set(gca,'xtick', 0.5 + 0:upper);
set(gca,'xticklabels', 0:upper);
legend({'wheeze' 'non-wheeze'});
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/596560/image.jpeg)
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