Edward,

Check the doc for bioperl: http://doc.bioperl.org/releases/bioperl-1.4/
---> SeqStats

and the tutorial too:
http://www.bioperl.org/Core/Latest/bptutorial.html#iii_3_2_obtaining_basic_sequence_statistics__seqstats_seqword_


Pierre

On Thu, 2006-09-07 at 14:33 +0800, Wijaya Edward wrote:

> Dear Expert,
>  
> Is there any existing Bioperl module that 
> computes background distributions of nucleotides
> given a set of DNA sequences?
>  
> Basically it computes:
>  
>     frequency of nucleotide A(denin)  / Total number of bases
>  
> and so forth for T or C or G.
>  
> 
> Regards,
> Edward WIJAYA
> SINGAPORE
> 
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