question: public void addRocLine ( VcfRecord rec , int sampleId , double tpWeight , double fpWeight , double tpRaw ) { double score = Double . NaN ; try { score = mRocExtractor . getSortValue ( rec , sampleId ) ; } catch ( IndexOutOfBoundsException ignored ) { } if ( Double . isNaN ( score ) || Double . isInfinite ( score ) ) { mNoScoreVariants ++ ; } else { final RocPoint point = new RocPoint ( score , tpWeight , fpWeight , tpRaw ) ; final int [ ] gt = mRequiresGt ? VcfUtils . getValidGt ( rec , sampleId ) : null ; for ( final RocFilter filter : filters ( ) ) { if ( filter . accept ( rec , gt ) ) { addRocLine ( point , filter ) ; } } } }
target:  add single result to ROC