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spgs (version 1.0-1)
Statistical Patterns in Genomic Sequences
Description
A collection of statistical hypothesis tests and other
techniques for identifying certain spatial relationships/phenomena in
DNA sequences. In particular, it provides tests and graphical methods for determining
whether or not DNA sequences comply with Chargaff's second parity rule
or exhibit purine-pyrimidine parity. In addition, there are functions for
efficiently simulating discrete state space Markov chains and testing
arbitrary symbolic sequences of symbols for the presence of first-order
Markovianness.
Also, it has functions for counting words/k-mers (and cylinder patterns) in
arbitrary symbolic sequences. Functions which take a DNA sequence as input
can handle sequences stored as SeqFastadna objects from the 'seqinr' package.