first previous next last contents

Dinucleotide frequencies

This routine simply counts dinucleotide frequencies for the selected region of the sequence. It also calculates an expected distribution based on the base composition. The output looks like: 

        A                C                G                T
     Obs    Expected  Obs    Expected  Obs    Expected  Obs    Expected
 A     7.91    5.84     5.64    5.93     5.05    6.49     5.57    5.91
 C     5.91    5.93     5.14    6.02     7.38    6.59     6.10    5.99
 G     6.11    6.49     7.56    6.59     6.30    7.22     6.90    6.56
 T     4.24    5.91     6.18    5.99     8.14    6.56     5.86    5.97
first previous next last contents
This page is maintained by James Bonfield. Last generated on 2 Febuary 1999.
URL: http://www.mrc-lmb.cam.ac.uk/pubseq/manual/nip4_8.html