Lib.rs

K-mers and associated operations.

This library provides functionality for extracting k-mers from sequences, and manipulating them in useful ways. The underlying representation is 64-bit integers (u64), so k > 32 is not supported by this library.

K-mers (or q-grams in some computer science contexts) are k-length sequences of DNA/RNA "letters" represented as unsigned integers. Following usual practice,

• "A" -> b00
• "C" -> b01
• "G" -> b10
• "T" or "U" -> b11

which has the nice property that the complementary bases are bitwise complements.