= About Deducer =
== Why Deducer? ==
Deducer is designed to be a free easy-to-use alternative to proprietary data analysis software such as SPSS, JMP, and Minitab. It has a menu system to perform common data manipulation and analysis tasks, and an excel-like spreadsheet in which to view and edit data frames. The goal of the project is two fold.
   * Provide an intuitive graphical user interface (GUI) for R, encouraging non-technical users to learn and perform analyses without programming getting in their way. So it may lower the entry threshold.
   * Increase the efficiency of expert R users when performing common tasks by replacing hundreds of keystrokes with a few mouse clicks. Also, as much as possible the GUI should not get in their way if they just want to do some programming. 
== Why Not? ==
   * Deducer is java-dependend and therefore sometimes not stable (although it has been a long time since I had problems, but I work very rarely with the deducer package; maybe it is more stable these days)
   * R is designed for text based interactions, the full functionality is not available through menues
   * the course will be based on typing the commands but maybe the Deducer GUI helps to overcome your inhibition to use R
== Installation ==
   * there are instructions how to install at [[http://www.deducer.org/ | http://www.deducer.org/ ]]
   * from within R:
      * run R
      * type library(JGR)
      * followed by JGR()
   * there is also a script created during the installation; the path is shown when you start Deducer via R (e.g. \texttt{~/R/i686-pc-linux-gnu-library/2.14/JGR/scripts/run}

== First Steps ==
 * After you have installed deducer, you have to load the Deducer related packages (this extends the menues)

 * Now basic statistical procedures are available through the menues