Question: Expected Value Of Finding A Subsequence In A Sequence Of Length L

1

Tim •

**10**wrote:Hi,

I was looking to find the expected value/frequency of finding a subsequence, within a sequence of length L.

For example, assuming that all nucleotides are equally probable, how many times would we expect to find the pattern 'ATTG' in a sequence of length = 20.

I tried looking in biostrings and IRanges (bioconductor), but didn't find what I was looking for.

many thanks!