CONTENTS This file may be processed with Sweave to generate a randomized copy of IPSUR.tex-a transparent copy of the Document-together with the ancillary materials IPSUR.Rdata and IPSUR.R.Please note,however,that IPSUR.Rnw is just a simple text file which does not support many of the extra features that LyX offers such as WYSIWYM editing, instantly (de)activating branches of the manuscript,and more. The Package There is a contributed package on CRAN,called IPSUR.The package affords many advantages, one being that it houses the Document in an easy-to-access medium.Indeed,a student can have the Document at his/her fingertips with only three commands: install.packages("IPSUR") library(IPSUR) read(IPSUR) Another advantage goes hand in hand with the Program's license;since IPUR is free,the source code must be freely available to anyone that wants it.A package hosted on CRAN allows the author to obey the license by default. A much more important advantage is that the excellent facilities at R-Forge are building and checking the package daily against patched and development versions of the absolute latest pre-release of R.If any problems surface then I will know about it within 24 hours. And finally,suppose there is some sort of problem.The package structure makes it in- credibly easy for me to distribute bug-fixes and corrected typographical errors.As an author I can make my corrections,upload them to the repository at R-Forge,and they will be reflected worldwide within hours.We aren't in Kansas anymore,Dorothy. Ancillary Materials These are extra materials that accompany IPUR.They reside in the /etc subdirectory of the package source. IPSUR.RData is a saved image of the R workspace at the completion of the Sweave processing of IRUR.It can be loaded into memory with File >Load Workspace or with the com- mand load("/path/to/IPSUR.Rdata").Either method will make every single object in the file immediately available and in memory.In particular,the data BLANK from Exercise BLANK in Chapter BLANK on page BLANK will be loaded.Type BLANK at the command line (after loading IPSUR.RData)to see for yourself. IPSUR.R is the exported R code from IPSUR.Rnw.With this script,literally every R command from the entirety of IPUR can be resubmitted at the command line. Notation We use the notation x or stem.leaf notation to denote objects,functions,etc..The sequence "Statistics Summaries>Active Dataset"means to click the Statistics menu item,next click the Summaries submenu item,and finally click Active Dataset.x CONTENTS This file may be processed with Sweave to generate a randomized copy of IPSUR.tex – a transparent copy of the Document – together with the ancillary materials IPSUR.Rdata and IPSUR.R. Please note, however, that IPSUR.Rnw is just a simple text file which does not support many of the extra features that LYX offers such as WYSIWYM editing, instantly (de)activating branches of the manuscript, and more. The Package There is a contributed package on CRAN, called IPSUR. The package affords many advantages, one being that it houses the Document in an easy-to-access medium. Indeed, a student can have the Document at his/her fingertips with only three commands: > install.packages("IPSUR") > library(IPSUR) > read(IPSUR) Another advantage goes hand in hand with the Program’s license; since IPSUR is free, the source code must be freely available to anyone that wants it. A package hosted on CRAN allows the author to obey the license by default. A much more important advantage is that the excellent facilities at R-Forge are building and checking the package daily against patched and development versions of the absolute latest pre-release of R. If any problems surface then I will know about it within 24 hours. And finally, suppose there is some sort of problem. The package structure makes it in￾credibly easy for me to distribute bug-fixes and corrected typographical errors. As an author I can make my corrections, upload them to the repository at R-Forge, and they will be reflected worldwide within hours. We aren’t in Kansas anymore, Dorothy. Ancillary Materials These are extra materials that accompany IPSUR. They reside in the /etc subdirectory of the package source. IPSUR.RData is a saved image of the R workspace at the completion of the Sweave processing of IPSUR. It can be loaded into memory with File ⊲ Load Workspace or with the com￾mand load("/path/to/IPSUR.Rdata"). Either method will make every single object in the file immediately available and in memory. In particular, the data BLANK from Exercise BLANK in Chapter BLANK on page BLANK will be loaded. Type BLANK at the command line (after loading IPSUR.RData) to see for yourself. IPSUR.R is the exported R code from IPSUR.Rnw. With this script, literally every R command from the entirety of IPSUR can be resubmitted at the command line. Notation We use the notation x or stem.leaf notation to denote objects, functions, etc.. The sequence “Statistics ⊲ Summaries ⊲ Active Dataset” means to click the Statistics menu item, next click the Summaries submenu item, and finally click Active Dataset