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histogram vector with deltaN specified
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I have a vector x
x = [1.7 2.2 1.7 3.0 2.2]
also I have a deltaN associated with each value in x
deltaN = [0.1 1.0 3.0 0.7 0.7]
How can I instruct Matlab to increase the count in bin corresponding to x(i) by deltaN(i), not 1?
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回答 (2 件)
Image Analyst
2017 年 10 月 22 日
What is deltaN? You can specify the edges of the bins if that's what you're asking about. See the documentation for histogram() or histcounts().
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Guillaume
2017 年 10 月 23 日
There are no weighted histogram function in matlab as far as I know. It's not really hard to implement:
x = [1.7 2.2 1.7 3.0 2.2];
deltaN = [0.1 1.0 3.0 0.7 0.7];
[~, ~, bin] = histcounts(x); %add whichever option you want to histcount
h = accumarray(bin', deltaN')
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