bisapdf
Birnbaum-Saunders probability density function (PDF).
For each element of x, compute the probability density function (PDF) of the Birnbaum-Saunders distribution with scale parameter beta and shape parameter gamma. The size of y is the common size of x, beta, and gamma. A scalar input functions as a constant matrix of the same size as the other inputs.
Further information about the Birnbaum-Saunders distribution can be found at https://en.wikipedia.org/wiki/Birnbaum%E2%80%93Saunders_distribution
See also: bisacdf, bisapdf, bisarnd, bisafit, bisalike, bisastat
Source Code: bisapdf
## Plot various PDFs from the Birnbaum-Saunders distribution
x = 0.01:0.01:4;
y1 = bisapdf (x, 1, 0.5);
y2 = bisapdf (x, 1, 1);
y3 = bisapdf (x, 1, 2);
y4 = bisapdf (x, 1, 5);
y5 = bisapdf (x, 1, 10);
plot (x, y1, "-b", x, y2, "-g", x, y3, "-r", x, y4, "-c", x, y5, "-m")
grid on
ylim ([0, 1.5])
legend ({"β = 1 ,γ = 0.5", "β = 1, γ = 1", "β = 1, γ = 2", ...
"β = 1, γ = 5", "β = 1, γ = 10"}, "location", "northeast")
title ("Birnbaum-Saunders PDF")
xlabel ("values in x")
ylabel ("density")
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## Plot various PDFs from the Birnbaum-Saunders distribution
x = 0.01:0.01:6;
y1 = bisapdf (x, 1, 0.3);
y2 = bisapdf (x, 2, 0.3);
y3 = bisapdf (x, 1, 0.5);
y4 = bisapdf (x, 3, 0.5);
y5 = bisapdf (x, 5, 0.5);
plot (x, y1, "-b", x, y2, "-g", x, y3, "-r", x, y4, "-c", x, y5, "-m")
grid on
ylim ([0, 1.5])
legend ({"β = 1, γ = 0.3", "β = 2, γ = 0.3", "β = 1, γ = 0.5", ...
"β = 3, γ = 0.5", "β = 5, γ = 0.5"}, "location", "northeast")
title ("Birnbaum-Saunders CDF")
xlabel ("values in x")
ylabel ("density")
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