Revision 1610 trunk/src/linad99/vbeta.cpp

vbeta.cpp (revision 1610)
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#include <fvar.hpp>
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/**
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 * Description not yet available.
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 * \param
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 * Beta density function
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 * \param a shape parameter
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 * \param b shape parameter
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 * 
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 * Note that the mean of the distribution is given by 
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 * mu = a/(a+b), and the variance is ab/((a+b)^2 (a+b+1))
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 */
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dvariable beta(const prevariable& a,const prevariable& b )
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{

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