[R] Reasons to Use R

Jorge Cornejo-Donoso jorgecornejo at uach.cl
Mon Apr 9 17:18:41 CEST 2007


tha s9ze of db is an issue with R. We are still using SAS because R
can't handle own db, and of couse we don't want to sacrify resolution,
because the data collection is expensive (at least in fisheries and
oceagraphy), so.. I think that R need to improve the use of big DBs. Now
I only can use R for graph preparation and some data analisis, but we
can't do the main work on R, abd that is really sad.


-----Mensaje original-----
    De: "Wilfred Zegwaard" <wilfred.zegwaard en gmail.com
    Enviado: 08/04/07 21:47:29
    Para: "r-help en stat.math.ethz.ch" <r-help en stat.math.ethz.ch>
    Asunto: Re: [R] Reasons to Use R
    
    Dear Johann and Gabor,
    
    It's what amounts to large datasets. There are hundreds of datasets
R
    can't handle, probably thousands or more. I noticed on my computer
    (which is nothing more that an average PC) that R breaks down after
250
    MB of memory. I also note that SPSS breaks down, Matlab, etc.
    
    I'm not a SAS user, but I have worked in the past with SAS. It's
very
    good as a remember, but it's ten years ago. And it's a "dollar
machine"
    I've been told: you add dollars to SAS as you add dollars to a
Porsche.
    I haven't got it and for most statistical applications it isn't
    necessary I've been told. R is sufficient for that. The datasets I
use
    are often not that big (the way I like it).
    About three years ago I spoke to somebody who has worked with it and
    said "it's database system is excellent and statistical profound".
    Someone with a PhD, so probably he is right.
    
    Monte-Carlo simulations are computationally time-consuming, but
probably
    these can be done in R. I haven't seen any libaries for it (they
might
    be there). It has been done with S (the commercial counterpart of
R), so
    probably with R too. If you tie Monte Carlo simulaton with large
    datasets you probably run into problems with a conventional R
system.
    What I've been told in those instances is "buy a new computer" /
"add
    memory and buy a new processor"... and don't smoke hashiesh.
    
    That wasn't a good advice because the guy who told me smoked
hashiesh
    like hell and drank Pastis (blue liqor) like water. I kicked him
out.
    But that's another story.
    
    Cheers,
    
    Wilfred
    
    (I drink wine and tailor made beer, and only on occasions. That's
why.
    His simulations were good I've been told.)
    
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