how to plot histogram
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I wanted to plot the histogram of the attached data with number of bins = 42
When i use
figure, imhist(HRGB,42)
I get just 2 vertical lines at 0 and 1.
Instead, how can i get histogram with number of bins 42, or is the below code correct?
h = histogram(HRGB,42);
Or is there a better way to plot the histogram of the attached data?
采纳的回答
load Xdata
% whos
figure; imshow(Xdata);
unique(Xdata(:))'
imhist assumes Xdata in the range of [0,1]. Therefore you have only two bins for 0 & 1 with your data
figure;
imhist(Xdata, 42)
You can rescale the data:
figure;
imhist(rescale(Xdata), 42);
Or you can use hist
figure
hist(Xdata(:), 42)
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