question: protected void computeParameters ( ) { if ( m_SumOfWeights > 0 ) { m_Mean = m_SumOfValues / m_SumOfWeights ; double stdDev = Math . sqrt ( Math . abs ( m_SumOfValuesSq - m_Mean * m_SumOfValues ) / m_SumOfWeights ) ; if ( stdDev > 1e-10 ) { m_StandardDev = Math . max ( m_Precision / ( 2 * 3 ) , stdDev ) ; } } }
target:  Compute the parameters of the distribution