stddev( Expr [, T nan] [, double mean] )
[Double valued reductions]

Functions


Detailed Description

Return standard deviation of Expr optionally neglecting values == nan and optionally store mean to pointed address. // = sqrt( variance(...) )

Function Documentation

template<class Expr, int N>
double ltl::stddev ( const ExprNode< Expr, N > &  e,
double avg = NULL 
) [inline]

template<class T, int N>
double ltl::stddev ( const MArray< T, N > &  a,
double avg = NULL 
) [inline]

template<class Expr, int N>
double ltl::stddev ( const ExprNode< Expr, N > &  e,
typename ExprNode< Expr, N >::value_type  nan,
double avg = NULL 
) [inline]

template<class T, int N>
double ltl::stddev ( const MArray< T, N > &  a,
const T  nan,
double avg = NULL 
) [inline]


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