Comments on: Obtaining overrepresented motifs in DNA sequences, part 5 http://python.genedrift.org/2008/05/21/obtaining-overrepresented-motifs-in-dna-sequences-part-iv/ a step-by-step guide to create Python applications in bioinformatics Mon, 22 Feb 2010 18:22:18 +0000 http://wordpress.org/?v=3.0-alpha hourly 1 By: Obtaining overrepresented motifs in DNA sequences, part 10 http://python.genedrift.org/2008/05/21/obtaining-overrepresented-motifs-in-dna-sequences-part-iv/comment-page-1/#comment-14038 Obtaining overrepresented motifs in DNA sequences, part 10 Wed, 04 Jun 2008 16:33:55 +0000 http://python.genedrift.org/?p=107#comment-14038 [...] as mentioned in the comments by Dave and by Mike via email the method used is not the best method to calculate factorial in Python. The [...] [...] as mentioned in the comments by Dave and by Mike via email the method used is not the best method to calculate factorial in Python. The [...]

]]> By: Paulo Nuin http://python.genedrift.org/2008/05/21/obtaining-overrepresented-motifs-in-dna-sequences-part-iv/comment-page-1/#comment-13536 Paulo Nuin Sat, 24 May 2008 14:03:46 +0000 http://python.genedrift.org/?p=107#comment-13536 Hi Dave Thanks for the suggestion. The operator.mul function will be covered in the next post. I saw this solution sometime ago, but historically following the blog I haven't introduced operator yet. Cheers Hi Dave

Thanks for the suggestion. The operator.mul function will be covered in the next post. I saw this solution sometime ago, but historically following the blog I haven’t introduced operator yet.

Cheers

]]> By: Dave Kirby http://python.genedrift.org/2008/05/21/obtaining-overrepresented-motifs-in-dna-sequences-part-iv/comment-page-1/#comment-13532 Dave Kirby Sat, 24 May 2008 13:09:10 +0000 http://python.genedrift.org/?p=107#comment-13532 Lambda calls are somewhat slower than functions implemented directly in C, so you can get a speedup by using the operator.mul function. On my system this gives a 19% speedup for factorial(1000). The operator module contains function equivalents to all the builtin operators (plus a few extra goodies), and the module is pure C, so is always faster than using lambda. Lambda calls are somewhat slower than functions implemented directly in C, so you can get a speedup by using the operator.mul function. On my system this gives a 19% speedup for factorial(1000).

The operator module contains function equivalents to all the builtin operators (plus a few extra goodies), and the module is pure C, so is always faster than using lambda.

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