From Gerhard.Thallinger at tugraz.at  Wed May 17 13:27:10 2006
From: Gerhard.Thallinger at tugraz.at (Gerhard Thallinger)
Date: Wed, 17 May 2006 13:27:10 +0200
Subject: [Rd] str() with attr(*,
	"names") is extremely slow for long vectors
Message-ID: <001b01c679a4$dd8b7720$c200020a@mobilix>

>>>>> "MartinM" == Martin Maechler maechler at stat.math.ethz.ch
>>>>>    Sat, May 13 2006 15:16:19 +0200 writes: 

  MartinM> But have you looked at R 2.3.0-patched at all?
  MartinM> 
  MartinM> I did acknowledge that str(<long character>) had become 
  MartinM> unacceptably slow, and had implemented a simple patch 
  MartinM> almost "immediately".

> Yes, I did. Here are the timings (WinXP 1.8 GHz):

>  R 2.3.0 Patched (2006-05-11 r38037) 
>
>   1. 44.09  0.09 44.45    NA    NA
>   2. 34.96  0.08 35.66    NA    NA
>   3. 34.52  0.07 34.81    NA    NA

  When I made the test I used an incomplete version of R patched (the
  new version of the utils package was missing). With the complete
  version of R patch the timings are now the same as with R 2.2.0.

Gerhard

------------------------------------------------------------------------
DI Gerhard Thallinger              E-mail:  Gerhard.Thallinger at tugraz.at
Institute for Genomics and Bioinformatics   Web: http://genome.tugraz.at
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[Rd] str() with attr(*, "names") is extremely slow for long vectors
Gerhard Thallinger