10.1371/journal.pone.0130301.g004 Claire A Batty Claire A Batty Michael Cauchi Michael Cauchi Célia Lourenço Célia Lourenço John O Hunter John O Hunter Claire Turner Claire Turner Permutation test distribution (dark grey (n = 300)) and the distribution of the bootstrapping classification accuracies (light grey (n = 150)) via PLS-DA following feature selection via STT (A) and WTT (B) for low versus high risk for all precursor ion datasets combined. Public Library of Science 2015 sulphide screening tests lack specificity dimethyl sensitivity colonoscopie faecal occult blood sample subject multivariate methods show Colorectal Cancer Diagnosis colorectal cancer compound ion flow tube mass spectrometry voc fobt Volatile Faecal Metabolome screening test 2015-06-18 04:08:06 Figure https://plos.figshare.com/articles/figure/_Permutation_test_distribution_dark_grey_n_300_and_the_distribution_of_the_bootstrapping_classification_accuracies_light_grey_n_150_via_PLS_DA_following_feature_selection_via_STT_A_and_WTT_B_for_low_versus_high_risk_for_all_precursor_ion_datasets_combined/1453907 <p>Permutation test distribution (dark grey (n = 300)) and the distribution of the bootstrapping classification accuracies (light grey (n = 150)) via PLS-DA following feature selection via STT (A) and WTT (B) for low versus high risk for all precursor ion datasets combined.</p>