Skip to main content
. 2008 Jan 24;9:45. doi: 10.1186/1471-2105-9-45

Table 5.

The Amino Acid Alphabet Sizes and Resulting Feature Vector Dimensions Used for N-Peptide Compositions.

N Size reduced alphabet (S) Feature Vector Dimension
1 20 20
2 20 400
1 8 8
2 8 64
1 4 4
2 4 16