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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<TITLE>RANDNF Generate Noncentral F-Distribution Random Variable
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<H2>RANDNF Generate Noncentral F-Distribution Random Variable
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Section: <A HREF=sec_random.html> Random Number Generation </A>
<H3>Usage</H3>
Generates a vector of non-central F-distributed random variables
with the specified parameters. The general syntax for its use is
<PRE>
y = randnf(n,m,c)
</PRE>
<P>
where <code>n</code> is the number of degrees of freedom in the numerator,
and <code>m</code> is the number of degrees of freedom in the denominator.
The vector <code>c</code> determines the non-centrality shift of the numerator.
<H3>Function Internals</H3>
A non-central F-distributed random variable is the ratio of a
non-central chi-square random variable and a central chi-square random
variable, i.e.,
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<IMG SRC="randnf_eqn1.png">
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<H3>Example</H3>
Here we use the <code>randf</code> to generate some non-central F-distributed
random variables:
<PRE>
--> randnf(5*ones(1,9),7,1.34)
ans =
Columns 1 to 8
1.9422 0.5987 0.1890 0.7468 2.3759 8.2553 1.8047 0.2222
Columns 9 to 9
2.2680
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