R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms (Linux), Windows and MacOS…” [R project]. Read also Wikipedia about R.

Read my R presentation

“Companies as diverse as Google,PfizerMerckBank of America, the InterContinental Hotels Group and Shell use it [..] Google, for example, taps R for help understanding trends in ad pricing and for illuminating patterns in the search data it collects. Pfizer has created customized packages for R to let its scientists manipulate their own data during nonclinical drug studies rather than send the information off to a statistician.” [New York Times and R]

Istat is moving from SAS to R … Ista has also releases several addition R packages: for instance see ever, mauss_r, StatMatch

Read also R Popularity and comparison with SAS, SPSS, S-PLUS, Stata and others…

r popularity

See also my opensource project R Statistics for Moodle


R packages

There are about 2000 additional packages for R at CRAN site. Some of them are:

  • caret: is a set of functions that attempt to streamline the process for creating predictive models

R and Oracle

R & Oracle Data Mining (ODM)

R & Oracle HR

R & Long Term Prediction

Strategico is an engine for massive analisys over time series: for instence the long term prediction.

R & Graphics

Distribuiting R computing:

Time series Analysts (and forecasting models)

Alternatives:

PSPP vs R

  • Number of (additional) libraries: R
  • Mails in user mailing (useful for support, estimation of users and product vitality): R (> 3000 in June 2010) vs PSPP (2 in June 2010)
  • Releases Frequency: R (5 nel 2009, 2 nel 2010), PSPP (1 nel 2009, 0 nel 2010)
  • User frontend: PSPP has a native excel like user interface. R is more for programmers but there are some projects of graphical user interfaces

Sites e Blogs about R