Message-ID: <x27jo9bydj.fsf@biostat.ku.dk>
Date: 2004-11-25T18:02:32Z
From: Peter Dalgaard
Subject: scatterplot of 100000 points and pdf file format
In-Reply-To: <XFMail.041125143039.Ted.Harding@nessie.mcc.ac.uk>
(Ted Harding) <Ted.Harding at nessie.mcc.ac.uk> writes:
> I want to look into this a bit more systematically (I have
> an idea why 'unique' may be taking longer on the array from
> 'cbind' than on the dataframe),
Just look inside the functions. One is pasting columns together, the
other is using a paste() construct inside an apply() function. So with
two columns by 1e6 rows, one is doing one large paste and the other a
million small ones.
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907