Precision and recall for three feature scenarios. Precision and recall are calculated at each cost parameter value based on a LOOCV scheme. Blue lines are precision. Red lines are recall. Horizontal bars or dots represent the minimum and maximum value of all cell lines. Points on the line are averages across all cell lines. A. Internal features for six cell lines. B. Internal features and pooled external features for six cell lines. C. Internal features and matched RNA-seq data for two cell lines.