Visualizzazione post con etichetta R_News. Mostra tutti i post
Visualizzazione post con etichetta R_News. Mostra tutti i post

mercoledì 3 aprile 2013

venerdì 6 luglio 2012

lunedì 31 ottobre 2011

R 2.14.0 is released!

The new R 2.14.0 is out! Get the source code from here.
Take a look at these posts for some miscellaneous advices to make the upgrade easier.
Also this thread on stackoverflow and this post contributed by Tal Galili can be of some value to make the procedure less painful.
Feel free to contribute with suggestions about how to upgrade your R installation.

giovedì 14 aprile 2011

R 2.13.0 is released!

The new R 2.13.0 is out! Get the source code from here.
Take a look at these posts for some miscellaneous advices to make the upgrade easier.
Also this thread on stackoverflow and this post contributed by Tal Galili can be of some value to make the procedure less painful.
Feel free to contribute with suggestions about how to upgrade your R installation.

venerdì 31 dicembre 2010

venerdì 15 ottobre 2010

R 2.12.0 is released!

The new R 2.12.0 is out! Get the source code from here.
Take a look at these posts for some miscellaneous advices to make the upgrade easier.
Also this thread on stackoverflow can be of some value.
Feel free to contribute with suggestions about how to upgrade your R installation.

giovedì 22 aprile 2010

R 2.11.0 is released!

The new R 2.11.0 is out! Get it from here.
Take a look at these posts for some miscellaneous advices to make the upgrade easier.
Also this thread on stackoverflow can be of some value.
Feel free to contribute with suggestions about how to upgrade your R installation.

domenica 7 marzo 2010

One R Tip A Day meets Tecnica Arcana

For italian speaking people only (sorry!).

Carlo il curatore dell'ottimo podcast tecnologico Tecnica Arcana mi ha intervistato sulla mia professione e su R. Qui potete scaricare l'intervista in formato mp3.

sabato 12 dicembre 2009

A central hub for R bloggers

I would like to suggest to my readers to take a look and bookmark a new blog named R-bloggers which aims to be "a central hub of content collected from bloggers who write about R".
It seems a nice idea to me to have a centralized source of information for the R blogger community.
Good Luck, Tal!

lunedì 26 ottobre 2009

R 2.10.0 is Out!

The new R 2.10.0 is out! Get it from here.
If you like take a look at these posts for some miscellaneous advices to make the upgrade easier.
Feel free to contribute with suggestions about how to upgrade your R installation.

venerdì 4 settembre 2009

R Flashmob #2

As I said before, I consider the R-Help mailing list an invaluable source of information if you want to get things done in R. Recently the stackoverflow website, a site where programmers can post and answer questions about a wide list of programming languages, has been populated with a lot of questions and answers regarding R thanks to a 'virtual' flash mob. Because of this event, stackoverflow has become a extremely  precious web 2.0 resource for the R community.

An other R Flash Mob event is scheduled for Tuesday, 8th September. I warmly recommend all my readers to take part to this event so to populate the stackoverflow site with even more useful questions and answers about our beloved R.

You can find both the event details and a letter, depicting the event, which you may forward to your colleagues/R-fanboy here.

venerdì 19 giugno 2009

Iran Election analyzed with R

Here you can find a very interesting post depicting the R strengths in 'real-time statistics'.
I'd like to use the occasion to thank David Smith for hosting the best, imho, blog on R! 
Follow Him on Twitter: @revodavid .

domenica 31 maggio 2009

Nice Interview

Here you can read a nice interview with David Smith, REvolution Computing’s Director of Community, statistician and bloggeR.

lunedì 30 luglio 2007

screen - an other VERY useful Unix tool

from R News Vol. 7/1 April 2007 (http://cran.r-project.org/doc/Rnews/Rnews_2007-1.pdf):
If you need to run R code that executes for long periods of time upon remote machines, this amazing unix tool would became your best friend!
screen is a so-called terminal multiplexor, which allows us to create, shuffle, share, and suspend command line sessions within one window. It provides protection against disconnections and the flexibility to retrieve command line sessions remotely.

Starting using this utility is easy like ABC:

  1. Log in to remote server
  2. Run screen
  3. Run R and the long calculation
  4. Detach screen (Ctrl-a, Ctrl-d)
  5. Logout

The R session continues working in the background, contained within the screen session. If we want to revisit the session to check its progress, then we:

  1. Log in remotely via secure shell
  2. Start screen -r, which recalls the unattached session
  3. Examine how your calculation/script is performing
  4. Detach the screen session, (Ctrl-a, Ctrl-d)
  5. Log out

This procedure can be used, clearly, for invoking whatever unix program/command you need to use; it is sufficient to substitute the R invoking command with your invoking command line program(for example python).

As usual in the shell-space, invoking man (man screen in this case) will provide all sort of information you need to know about the tool.