How to rescale the y-axis of a histogram?
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Let' say that we have 100 data points, and we’re making a histogram.
[counts] = histcounts(data)
sum(counts) should equal to 100.
If I were to normalize the histogram, in other words, we normalize the y-axis, the total count would equal to 1.
Notice here I am not changing the original data, I am simply changing the counts or the y-scale.
Now, I would like to rescale the y-axis, such that the total count would equal 200.
The new plot should follow the same distribution as before, except it has a different y-scale.
Is there a way to do this?
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採用された回答
Star Strider
2019 年 11 月 29 日
One approach:
X = randn(1, 420);
[N,edges] = histcounts(X, 'Normalization', 'probability');
xbar = edges(1:numel(N)) + mean(diff(edges))/2;
figure
bar(xbar, N)
grid
yt = get(gca, 'YTick');
ytix = linspace(min(yt), max(yt), 10);
set(gca, 'YTick',ytix, 'YTickLabel',fix(ytix*200/max(yt)))
Experiment to get different results.
その他の回答 (1 件)
Image Analyst
2019 年 11 月 29 日
You can use ylim() to scale the y axis. Use it to set the min and max value of the y axis to whatever you want them to be.
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