TABLE 2.
Incorrect serotype assignments for different parameter setsa
| P | % incorrect serotype assignments with a minimal frequency of: |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | |
| 1 | 31 | 8.7 | 3.3 | 1 | 1.7 | 3.3 | 2.7 | 6.7 | 5.3 | 3 |
| 0.5 | 12.7 | 5.7 | 2.3 | 1 | 2 | 3.3 | 3 | 5.7 | 5.3 | 3.7 |
| 0.4 | 13 | 5 | 2.3 | 0.7 | 2 | 3.3 | 2.7 | 5.7 | 6 | 3 |
| 0.3 | 14 | 5 | 2.3 | 0.7 | 2 | 3.3 | 2.7 | 6.3 | 5.3 | 3 |
| 0.2 | 4.3 | 5 | 2.3 | 0.7 | 2 | 3.3 | 2.7 | 6.3 | 4.7 | 3.3 |
| 0.1 | 5 | 4.3 | 2 | 0.7 | 2 | 3.3 | 3 | 6.3 | 4.7 | 3.7 |
| 0.05 | 5 | 4.3 | 1.3 | 1.3 | 2.3 | 3.3 | 3 | 6 | 4.7 | 3.7 |
| 0.02 | 5.3 | 3 | 0.7 | 1 | 2 | 3.3 | 2.7 | 4.7 | 3.7 | 2.7 |
| 0.01 | 5.3 | 3.3 | 3.0 | 0.7 | 1.7 | 2.7 | 3.3 | 4 | 3.7 | 2.7 |
| 0.001 | 6 | 4.3 | 3.0 | 0.7 | 2.3 | 3.7 | 3 | 3.7 | 4.3 | 3.7 |
a
The minimum frequency of occurrence and the maximum P value of the Fisher test were used as criteria for the selection of masses that were used for the calculation of prototype spectra. Serotypes were then assigned by comparison of sample spectra with the prototype spectra. The table lists the percentages of incorrect serotype assignments under the conditions applied.