Fig. 9From: Blood hyperviscosity identification with reflective spectroscopy of tongue tip based on principal component analysis combining artificial neural networkThe accuracies of two cross validations. a The accuracies of 100 times Hold-out cross validation. b The accuracies of 67 times Leave-one-out cross validation. The blue asterisk represents the accuracy, the green line is the mean value of accuracies, the purple dash line is the mean value plus the standard deviation and the green dash line is the mean value minus the standard deviationBack to article page