question: public void add ( double [ ] preds , double [ ] input ) { if ( m_targetCategory == - 1 ) { preds [ 0 ] += m_coefficient * Math . pow ( input [ m_miningSchemaAttIndex ] , m_exponent ) ; } else { preds [ m_targetCategory ] += m_coefficient * Math . pow ( input [ m_miningSchemaAttIndex ] , m_exponent ) ; } }
target:  Adds this predictor into the sum for the current prediction.