- I need heavy statistical processing for a project, and found the R

software (http://www.r-project.org/). I succeeded in using it for

simple tasks such as plotting and linear curve fitting.

However, I see I need some hand-holding to do more complex analysis.

Is there anyone in Israel who is already using R and has few free

moments for holding my hand?

Thanks,

--- Omer

My opinions, as expressed in this E-mail message, are mine alone.

They do not represent the official policy of any organization with which

I may be affiliated in any way.

WARNING TO SPAMMERS: at http://www.zak.co.il/spamwarning.html - how is it with large matrices of data? or large arrays, depends on the

terminology.

by large I mean10000, 50000,100000 records.

I have data in text files which is 40mb which I need to analyze.

currently I plan to use matlab, unless there is something else(free like

gpl, lgpl).

Regards,

tzahi.

> -----Original Message-----

> From: Omer Zak [mailto:omerz@...]

> Sent: Sunday, May 30, 2004 12:34 AM

> To: Hackers-IL

> Subject: [hackers-il] The R Project for Statistical Computing

>

>

> I need heavy statistical processing for a project, and found the R

> software (http://www.r-project.org/). I succeeded in using it for

> simple tasks such as plotting and linear curve fitting.

>

> However, I see I need some hand-holding to do more complex

> analysis. Is there anyone in Israel who is already using R

> and has few free

> moments for holding my hand?

> Thanks,

> --- Omer

> My opinions, as expressed in this E-mail message, are mine

> alone. They do not represent the official policy of any

> organization with which I may be affiliated in any way.

> WARNING TO SPAMMERS: at http://www.zak.co.il/spamwarning.html

>

>

>

> ------------------------ Yahoo! Groups Sponsor

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>

> - Tzahi Fadida wrote:

> how is it with large matrices of data? or large arrays, depends on the

So far I didn't try R on large data matrices.

> terminology.

> by large I mean10000, 50000,100000 records.

> I have data in text files which is 40mb which I need to analyze.

> currently I plan to use matlab, unless there is something else(free like

> gpl, lgpl).

It is GPLed, and is also an official part of the FSF GNU project.

--- Omer

My blog is at http://www.livejournal.com/users/tddpirate/

My opinions, as expressed in this E-mail message, are mine alone.

They do not represent the official policy of any organization with which

I may be affiliated in any way.

WARNING TO SPAMMERS: at http://www.zak.co.il/spamwarning.html - On Monday 31 May 2004 09:51, Omer Zak wrote:
> Tzahi Fadida wrote:

Well, I'm not sure that R is a suitable replacement for Matlab. R aims to be a

> > how is it with large matrices of data? or large arrays, depends on the

> > terminology.

> > by large I mean10000, 50000,100000 records.

> > I have data in text files which is 40mb which I need to analyze.

> > currently I plan to use matlab, unless there is something else(free like

> > gpl, lgpl).

>

> So far I didn't try R on large data matrices.

substitute of S-plus, which is a statistical analysis program. There are a

list of other programs like that here:

http://salstat.sourceforge.net/

(look in the right side-bar).

If you're looking for something to replace Matlab, you are better off with one

of these:

1. octave - http://www.octave.org/ - mostly compatible with Matlab. Still

incomplete.

2. scilab - http://scilabsoft.inria.fr/ - incompatible with Matlab, but

there's a program to convert Matlab programs to it (but not vice-versa).

Still incomplete in comparison to Matlab, but has a nice GUI interface.

It is sourceware, but I'm not sure if it's entirely free-as-in-speech. (albeit

the homepage links the word "Free" to the license) Its license is still

usable.

3. PDL (short for Perl Data Language) - http://pdl.perl.org/

A package offering fast and compact tensor manipulation operations to Perl,

similar to those provided by Matlab. Still incomplete.

There may be other packages like that, but I haven't had any experience with

them, so STFW. I don't think there's anything quite like Matlab available yet

as far as the availability of modules and add-ons is concerned. But if I

understand Tzahi's needs, then he should be able to find something sufficient

for them, that is open-source.

Regards,

Shlomi Fish

--

---------------------------------------------------------------------

Shlomi Fish shlomif@...

Homepage: http://shlomif.il.eu.org/

Quidquid latine dictum sit, altum viditur.

[Whatever is said in Latin sounds profound.]