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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: J Proteome Res. 2011 Feb 23;10(4):2095–2103. doi: 10.1021/pr1012174

Table 1.

The number of spectra, means, modes, and coefficients of variance for peptide ratios derived from five BSA samples (before filtering, after filtering by SVM, and after filtering by S/N).

Peptide ratio
(heavy to light)		 Number
of spectra		 Mean Mode Coefficient of
variation
before filtering / after filtering by SVM / after filtering by S/Na
1:5 424 / 302 0.6 / 0.3 / 0.5 0.2 / 0.2 / 0.3 2.2 / 0.4 / 0.9
1:3 475 / 352 0.6 / 0.4 / 0.5 0.3 / 0.3 / 0.4 1.8 / 0.2 / 0.7
1:1 545 / 344 1.0 / 1.0 / 1.0 0.9 / 0.9 / 0.9 0.4 / 0.1 / 0.2
3:1 509 / 343 2.3 / 2.3 / 2.3 2.6 / 2.5 / 2.5 0.3 / 0.2 / 0.2
5:1 432 / 278 3.3 / 3.3 / 3.4 3.8 / 3.5 / 3.6 0.3 / 0.3 / 0.3
a

The number of spectra filtered by S/N was set equal to the number of spectra filtered by the SVM classifier.