Figure 3
From: Validation of a microRNA-based qRT-PCR test for accurate identification of tumor tissue origin
Confusion matrix on the validation set for the 124 single-answer cases. Each row and column correspond to one of the tissues of origin identified by the test. Only 16 rows (and columns) are shown, rather than the 17 tissue origins, as no single-answer sample or prediction corresponded to the ‘esophagus squamous’ class. Rows indicate the tissue of the reference diagnosis, columns indicate the tissue determined by the microRNA test (in the same order); numbers on the diagonal indicate cases for which the tissues predicted by the test matched the reference diagnosis, whereas off-diagonal cases were in disagreement and were counted as test errors. Numbers in parenthesis (along the vertical axis) denote the overall sensitivity (positive percent agreement) per tissue of origin among the single-answer cases.
