MATLAB: How to plot normalised histogram with specific number of bins

binshistogram

I have a vector of 1000 variables and I want to plot the normalised histogram with specific number of bins.

for a the normalisation I know that I should use this code: histogram(class_1,'Normalization','probability');

and for the specific number of bins(500 for example) I should use this code: histogram(class_1,500);

but how I use them together?

Try this:

figure
histogram(class_1, 500, 'Normalization','probability')

You could request output from histogram():

h = histogram(S,'Normalization','probability');

and access properties such as h.BinEdges, h.BinCounts, h.Values, etc, described here.

Or you could use histcounts(), described here, after you plot your histogram:

histogram(S,'Normalization','probability');
[binCounts,binEdges] = histcounts(S,'Normalization','probability');

Use repmat to avoid manually typing all 160 of those ‘%q’ repeats!

Try this:

formatSpec = ['%f',repmat('%q',1,160), '%[^\n\r]'];