MATLAB: How to plot empirical cdf in matlab release 2013a

distribution

I have matlab release 2013a but the ecdf command is not available for this release. Is there an alternative solution to plot the empirical cdf in release 2013a?.

Best Answer

One approach: 
x = randn(100,1);                                           % Create Data
binrng = linspace(-5, 5, 26);                               % Choose Bin Centres
hx = histc(x, binrng);                                      % Histogram Counts
chx = cumsum(hx)/numel(x);                                  % Cumulative Sum
figure
plot(binrng, chx)
grid
In histc, the bin ranges are the bin centres. It calculates the bin edges from them.
Experiment to get the result you want.
Related Question