Fig. 6
From: Putative biomarkers for predicting tumor sample purity based on gene expression data
A schematic of the XGBoost workflow. The shaded area indicates the data and its partitioning. The boxes inside the dashed lines depict training and testing procedures where T stands for tree and GBM stands for gradient boosting machine. The two oval boxes on the right denote the outputs from XGBoost. A tree-representation of the training and testing procedures is provided in Additional file 13: Figure S4