Cumulative histogram with bin being values greater than or equal.

I'm trying to plot a dose volume histogram and I know that I can use histogram(X, 'Normalization', 'cdf') in order to plot a cumulative distributive histogram where each bin is all values less than or equal to the bin value. However, I would like to have a histogram where each bin is all values greater than or equal to the bin value. Does anyone know of a simple way to accomplish that in MATLAB?

Answer 1

[Image Analyst]

Do you mean like this:

data = randn(100000, 1);
[counts, edges] = histcounts(data)

counts = 1×88

1 0 0 1 0 1 3 0 1 4 5 13 25 15 29 41 46 74 91 106 162 188 264 307 418 510 604 733 818 1043

edges = 1×89

-4.6000 -4.5000 -4.4000 -4.3000 -4.2000 -4.1000 -4.0000 -3.9000 -3.8000 -3.7000 -3.6000 -3.5000 -3.4000 -3.3000 -3.2000 -3.1000 -3.0000 -2.9000 -2.8000 -2.7000 -2.6000 -2.5000 -2.4000 -2.3000 -2.2000 -2.1000 -2.0000 -1.9000 -1.8000 -1.7000

subplot(3, 1, 1);
bar(edges(1:end-1), counts)
grid on;
xlabel('Value')
ylabel('Counts')
title('Histogram')
% Compute cdf
cdf = rescale(cumsum(counts), 0, 100);
subplot(3, 1, 2);
bar(edges(1:end-1), cdf);
grid on;
xlabel('Value')
ylabel('Percent')
title('CDF')
% where each bin is all values greater than or equal to the bin value.
subplot(3, 1, 3);
bar(edges(1:end-1), 100-cdf); % or fliplr(cdf)
grid on;
xlabel('Value')
ylabel('Percent')
title('CDF')