Table 3.
General results of all PCA runs with respect to our three tests
| PCA RESULTS | ||||
|---|---|---|---|---|
| PCA COVARIANCE MATRIX | PCA CORRELATION MATRIX | |||
| Standard (17 Variables) | ROC-Supervised (4 Variables) | Standard (17 Variables) | ROC-Supervised (4 Variables) | |
| Test 1: ID of original 30 mice | % Correct | % Correct | ||
| 17 WT | 17/17 (100%) | 17/17 (100%) | 17/17 (100%) | 17/17 (100%) |
| 13 R6/2 | 8/13 (61.54%) | 13/13 (100%) | 13/13 (100%) | 13/13 (100%) |
| Total | 25/30 (83.33%) | 30/30 (100%) | 30/30 (100%) | 30/30 (100%) |
| (+) Likelihood Ratio | 0.615/0 →∞ | 1/0 →∞ | 1/0 →∞ | 1/0 →∞ |
| (-) Likelihood Ratio | 0.385 | 0/1=0 | 0/1=0 | 0/1=0 |
| TEST 2: ID of 31 unknown | ||||
| mice | ||||
| 20 WT | 20/20 (100%) | 20/20 (100%) | 20/20 (100%) | 20/20 (100%) |
| 11 R6/2 | 7/11 (63.64%) | 11/11 (100%) | 8/11 (72.73%) | 11/11 (100%) |
| Total | 27/31 (87.10%) | 31/31 (100%) | 28/31 (90.32%) | 31/31 (100%) |
| (+) Likelihood Ratio | 0.636/0→∞ | 1/0→∞ | 0.727/0→∞ | 1/0→∞ |
| (-) Likelihood Ratio | 0.364 | 0/1=0 | 0.273 | 0/1=0 |
| TEST 3: ID of original 13 R6/2 mice | (R6/2)-ROCSupervised (2 Variables) | (R6/2)-ROCSupervised (2 Variables) | ||
| 7 R6/2 8 wks old | 6/7 (85.71%) | 7/7 (100%) | 7/7 (100%) | 7/7 (100%) |
| 6 R6/2 12 wks old | 6/6 (100%) | 6/6 (100%) | 6/6 (100%) | 6/6 (100%) |
| Total | 12/13 (92.31%) | 13/13 (100%) | 13/13 (100%) | 13/13 (100%) |
| (+) Likelihood Ratio | 6.998 | 1/0→∞ | 1/0→∞ | 1/0→∞ |
| (-) Likelihood Ratio | 0/0.857=0 | 0/1=0 | 0/1=0 | 0/1=0 |