Table 3 Confusion matrix for classification of spectra from human breast based on one-site-out, or one-patient-out cross-validation.

From: Testing of rapid evaporative mass spectrometry for histological tissue classification and molecular diagnostics in a multi-site study

True class ↓

Predicted class (no. of spectra)

Correct classification rate (%)

Rate of false negatives (%)

Rate of false positives (%)

Tumor

Normal

Total

Tumor

70a

1a

71

97.1

1.4

5.0

Normal

7a

132a

139

Total

77

133

210

Tumor

69b

2b

71

98.6

2.8

0.7

Normal

1b

138b

139

Total

70

140

210

  1. aPredicted class based on leave one-site-out cross-validation.
  2. bPredicted class based on leave one-patient-out cross-validation.
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