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Normal and Related Distributions
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FisherZDistribution
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Normal and Related Distributions
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FisherZDistribution
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BUILT-IN MATHEMATICA SYMBOL
FRatioDistribution
LogisticDistribution
ChiSquareDistribution
NormalDistribution
See Also »
|
Normal and Related Distributions
New in 8.0: Alphabetical Listing
More About »
FisherZDistribution
FisherZDistribution
represents a Fisher
distribution with
n
numerator and
m
denominator degrees of freedom.
MORE INFORMATION
The probability density for value
in a Fisher
distribution is proportional to
for all real
.
FisherZDistribution
allows
n
and
m
to be any positive real numbers.
FisherZDistribution
can be used with such functions as
Mean
,
CDF
, and
RandomVariate
.
EXAMPLES
CLOSE ALL
Basic Examples
(4)
Probability density function:
Cumulative distribution function:
Mean:
Median:
Probability density function:
In[1]:=
Out[1]=
In[2]:=
Out[2]=
In[3]:=
Out[3]=
Cumulative distribution function:
In[1]:=
Out[1]=
In[2]:=
Out[2]=
In[3]:=
Out[3]=
Mean:
In[1]:=
Out[1]=
Median:
In[1]:=
Out[1]=
Scope
(7)
Generate a set of pseudorandom numbers that are Fisher
distributed:
Compare its histogram to the PDF:
Distribution parameters estimation:
Estimate the distribution parameters from sample data:
Compare the density histogram of the sample with the PDF of the estimated distribution:
Skewness:
Kurtosis:
Different moments with closed forms as functions of parameters, including
Moment
:
CentralMoment
:
FactorialMoment
:
Cumulant
:
Hazard function:
Quantile function:
Applications
(1)
Given a binormal sample, the
-statistic follows a shifted
FisherZDistribution
:
Generate the distribution of
-statistics for binormal samples of size
:
Visually compare the
-statistic distribution to a shifted
FisherZDistribution
:
DistributionFitTest
confirms the result:
Properties & Relations
(3)
Parameter influence on the CDF for each
:
Relationships to other distributions:
Fisher
distribution is a transformation of
FRatioDistribution
:
SEE ALSO
FRatioDistribution
LogisticDistribution
ChiSquareDistribution
NormalDistribution
MORE ABOUT
Normal and Related Distributions
New in 8.0: Alphabetical Listing
New in 8