how to plot empirical cdf in matlab release 2013a

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?.

Answer 1

[Star Strider]

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.