[R] Sytem Requirements for R for Win XP

Henrik Bengtsson hb at maths.lth.se
Tue Jan 20 15:46:23 CET 2004


I have a WinXP Pro 1.8GHz 512Mb Pentium 4 laptop machine and do
microarray analysis on it with R. However, it would do better with
more RAM. So, if you're buying a new system then go for >1024Mb. Of
course, this depends totally on what kind of analysis you do and how
many arrays you work with (==have loaded) at the same time and so.
Doing microarray analysis my thumb rule is that you get more bang for
bucks if you put the money on RAM rather than the CPU; swapping takes

About QuantArray tab-delimited output files: Reading a 2.9Mb file
using read.table() with optimized field types (colClasses - integers
for integer fields and so on), object.size() says that the read data
frame is 2.8Mb. So, without knowing your exact fields, maybe you can
calculate with 16Mb per slide in your case.

Henrik Bengtsson
Lund University, Sweden

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Derk Bemeleit
> Sent: den 20 januari 2004 15:14
> To: R-help at stat.math.ethz.ch
> Subject: [R] Sytem Requirements for R for Win XP
> Dear R-Tech Support Team, 
> I was just browsing on your web page and I am curious about 
> R's system requirements. How many MB RAM and what processor 
> speed would you recommend for Win XP if I want to load 
> QuantArray Excel output files of appr. 16 MB each? 
> Thank you very much in advance,
> Derk Bemeleit
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