For newcomers to R who have at least a basic background in the principles of statistical analysis, John Maindonald has contributed an introductory guide to R: Using R for Data Analysis and Graphics. It uses a series of data sets and example R code to take the beginning user through launching R (on a Windows system; installing R is not covered), executing simple commands at the command-line, understanding objects and R function calls, graphics, and some simple statistical modeling techniques. Later chapters do touch on some more advanced modeling methods and how to program your own functions, but these sections can safely be ignored by the beginning R user.

How do I extract only positive values of a time series with negative and positive real numbers?

Posted by: Ram Ramaiah | October 20, 2012 at 11:53