MATLAB: Normalize a histogram in matlab 2013b

histogramMATLAB

hello all ,
i need the same that is my y axis should be in probability and my x-axis should remain same (not the number of bins).
since their is no direct normalization function in 2013b version i am using
h = hist(z);
h =h/sum(h);
bar(h);
using bar(h) i get my y axis in probabilities,but my x-axis limits to number of bins. i need the x-asix range same as the one i get when i do hist(z).
in advance ,thanks for the help

Best Answer

[h, x_centers] = hist(z);
h = h/sum(h);
bar(x_centers, h);