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Function Reference: binoinv

statistics: x = binoinv (p, n, ps)

Inverse of the Binomial cumulative distribution function (iCDF).

For each element of p, compute the quantile (the inverse of the CDF) of the binomial distribution with parameters n and ps, where n is the number of trials and ps is the probability of success. The size of x is the common size of p, n, and ps. A scalar input functions as a constant matrix of the same size as the other inputs.

Further information about the binomial distribution can be found at https://en.wikipedia.org/wiki/Binomial_distribution

Input arguments must be double or single; integer, logical, and character arrays are rejected. MATLAB accepts a character array and evaluates it at the character codes, which Octave deliberately does not, since a character array is an integer type and integers are refused too.

See also: binocdf, binopdf, binornd, binofit, binolike, binostat, binotest

Source Code: binoinv

Plot various iCDFs from the binomial distribution

 p = 0.001:0.001:0.999;
 x1 = binoinv (p, 20, 0.5);
 x2 = binoinv (p, 20, 0.7);
 x3 = binoinv (p, 40, 0.5);
 plot (p, x1, '-b', p, x2, '-g', p, x3, '-r')
 grid on
 legend ({'n = 20, ps = 0.5', 'n = 20, ps = 0.7', ...
          'n = 40, ps = 0.5'}, 'location', 'southeast')
 title ('Binomial iCDF')
 xlabel ('probability')
 ylabel ('values in x (number of successes)')
plotted figure