Function Reference: geopdf
- statistics: y = geopdf (x, ps)
Geometric probability density function (PDF).
For each element of x, compute the probability density function (PDF) of the geometric distribution with probability of success parameter ps. The size of y is the common size of x and ps. A scalar input functions as a constant matrix of the same size as the other inputs.
The geometric distribution models the number of failures (x) of a Bernoulli trial with probability ps before the first success.
Further information about the geometric distribution can be found at https://en.wikipedia.org/wiki/Geometric_distribution
See also: geocdf, geoinv, geornd, geofit, geostat
Source Code: geopdf
Example: 1
## Plot various PDFs from the geometric distribution
x = 0:10;
y1 = geopdf (x, 0.2);
y2 = geopdf (x, 0.5);
y3 = geopdf (x, 0.7);
plot (x, y1, "*b", x, y2, "*g", x, y3, "*r")
grid on
ylim ([0, 0.8])
legend ({"ps = 0.2", "ps = 0.5", "ps = 0.7"}, "location", "northeast")
title ("Geometric PDF")
xlabel ("values in x (number of failures)")
ylabel ("density")
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