Bioperl: Re: Bioperl-guts: PROPOSAL: feature_count method in Bio::Seq?

[Ewan Birney]

On Thu, 15 Jun 2000, Peter van Heusden wrote:


Peter - I think this sort of message should be on the main bioperl list,
(we decided to leave the guts list only for bug reports basically)

> Hi All
> 
> In order to implement a fix to the Fasta->EMBL problem I reported earlier,
> I'd like a way to tell if a Seq object has any SeqFeatures. There doesn't
> currently seem to be a way to do this, besides retrieving them and looking
> at the size of the array you get back - which is a waste of memory, in
> some cases (e.g. it means that code in embl.pm for the non _post_sort'ed
> case doesn't lower memory load, as promised).
> 
> So - I'd like to add a 'feature_count' method in Seq.pm, which
> returns the number of features (if present) or -1. What do people
> think?


Sounds great. Add it on the main branch. 

But...

Surely it should return 0 for no features, not -1 (or am I being stupid?)



> 
> Peter
> --
> Peter van Heusden				pvh@egenetics.com
> Electric Genetics
> 
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