Hi Jorge
In fact I have been working with that method. I made a simple R function to
apply it, and I'm sending you the code below. If you have any questions about
it just send me a message.
Cheers
Alberto
On Tuesday 28 August 2007 8:44 pm, Jorge Cornejo Donoso wrote:
Hi, I�m looking for
On Friday 30 March 2007 14:34, Schmitt, Corinna wrote:
Hallo R-experts,
for a function I need to work with the commands div and mod known
from Pascal and Ruby. The only help I know is ceiling() and floor()
in R. Do div and mod exist? When yes please send me a little
example.
In
On Friday 30 March 2007 14:46, Alberto Murta wrote:
On Friday 30 March 2007 14:34, Schmitt, Corinna wrote:
Hallo R-experts,
for a function I need to work with the commands div and mod known
from Pascal and Ruby. The only help I know is ceiling() and floor()
in R. Do div and mod exist
On Wednesday 28 June 2006 15:45, Patrick Connolly wrote:
On Wed, 28-Jun-2006 at 04:43PM -0700, Alberto Murta wrote:
| I have a pentium 4 pc with 256 MB of RAM, so I made a text file, tab
|
| separated, with column names and 15000 x 483 integers:
| system(ls -l teste.txt)
|
| -rw-r--r-- 1
I have a pentium 4 pc with 256 MB of RAM, so I made a text file, tab
separated, with column names and 15000 x 483 integers:
system(ls -l teste.txt)
-rw-r--r-- 1 amurta amurta 16998702 Jun 28 16:08 teste.txt
the time it took to import it was around 15 secs:
system.time(teste -
On Thursday 26 January 2006 07:56, [EMAIL PROTECTED] wrote:
While symbolic computation is handy, I actually think a more pressing
addition to R is some kind of automatic differentiation facility,
particularly 'reverse mode' AD, which can be spectacular. There are
free tools available for it
Mensagem original de Patrick Burns (Terça, 3 de Janeiro de 2006 19:28):
Wensui Liu wrote:
Another big difference between R and other computing language such as
SPSS/SAS/STATA.
You can easily get a job using SPSS/SAS/STATA. But it is extremely
difficult to find a job using R. ^_^.
Actually
Dear all
Has anyone tried to compile R for the Palm OS?
--
Alberto G. Murta
Institute for Agriculture and Fisheries Research (INIAP-IPIMAR)
Av. Brasilia, 1449-006 Lisboa, Portugal | Phone: +351 213027120
Fax:+351 213015948 |
Parece que não tiveste grandes ajudas. Eu se fosse a ti fazia isso com um
bootstrap bem planeado
Alberto
On Thursday 03 June 2004 21:22, Prof Brian Ripley wrote:
On Thu, 3 Jun 2004, Cristina Silva wrote:
I have tried to estimate the confidence intervals for predicted values of
a nonlinear
Ops!
I apologise for posting my last message to the R list by mistake.
--
Alberto G. Murta
Institute for Agriculture and Fisheries Research (INIAP-IPIMAR)
Av. Brasilia, 1449-006 Lisboa, Portugal | Phone: +351 213027062
Fax:+351 213015948 |
On Tuesday 20 April 2004 15:02, Philippe Grosjean wrote:
No software is eternel. I think a good picture of the change in time of R
users would be an interesting tool to have an idea on how well it fits or
don't fit users' needs. Moreover, if you develop for both R and S-PLUS, and
think to
19.04762
mydata - matrix(runif(132,-5,5), 12, 11)
mahalanobis(x=mydata, center=apply(mydata,2,mean), cov=var(mydata))
[1] 10.08333 10.08333 10.08333 10.08333 10.08333 10.08333 10.08333 10.08333
10.08333 10.08333 10.08333 10.08333
Thanks in advance
Alberto Murta
version
The following note was placed today in the web site:
Note to english-speaking readers (2004/03/05): Many people have asked me if
an English version of this document was on the way. The French version is
still unfinished, but I hope it will be over before summer. I shall then
consider
Thank you for your suggestion. It is really a very good (and pretty)
introduction to R.
Cheers
Alberto
On Thursday 04 March 2004 11:36, Shigeru Mase wrote:
Dear R users,
I want to share my joy with you. Please see the following
excellent introduction to R Statistiques avec R by
Vincent
Thank you very much to Tony Plate for his really clear explanation, and to
Prof Ripley for his time solving this deficiency (IMHO)
On Friday 15 August 2003 08:44, Martin Maechler wrote:
Thank you, Tony. This certainly was the most precise
explanation on this thread.
Everyone note however,
4 8 12 0
HTH,
Andy
-Original Message-
From: Alberto Murta [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 14, 2003 12:50 PM
To: [EMAIL PROTECTED]
Subject: [R] vectorization question
Dear all
I recently noticed the following error when cohercing a
data.frame
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