Graphical representation of genomes
and oligonucleotide frequencies

Chaos Game Representation (CGR)
as described by Jeffrey (1990).
Represents DNA primary sequence organization.


Chaos Game Representation of Frequencies (FCGR)
as described by Deschavanne at al. (1999).
Represents frequencies of oligonucleotides.


This script has been extracted from online tools at
CGR and FCGR images for all sequenced bacterial genomes are available here
Example representations for E. coli K12: CGR, FCGR

Source code is available at