littler

littler is a scripting front-end for GNU R.
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  • Rating:
  • License:
  • GPL
  • Price:
  • FREE
  • Publisher Name:
  • Dirk Eddelbuettel
  • Publisher web site:
  • http://dirk.eddelbuettel.com/code/rquantlib.html

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littler Description

littler is a scripting front-end for GNU R. littler is a scripting front-end for GNU R.What?littler provides hash-bang (i.e. script starting with #!/some/path) capability for GNU R, as well as simple command-line and piping use.Why?GNU R, a language and environment for statistical computing and graphics, provides a wonderful system for 'programming with data' as well as interactive exploratory analysis, often involving graphs.Sometimes, however, simple scripts are desired. While R can be used in batch mode, and while so-called 'here' documents can be crafted, a long-standing need for a scripting front-end has often been expressed by the R Community.littler (pronounced 'little R' and written 'r') aims to fill this need.It can be used directly on the command-line just like, say, bc(1): $ echo 'cat(pi^2,"n")' | r 9.869604Equivalently, commands that are to be evaluated can be given on the command-line $ r -e 'cat(pi^2, "n")' 9.869604But unlike bc(1), GNU R has a vast number of statistical functions. For example, we can quickly compute a summary() and show a stem-and-leaf plot for file sizes in a given directory via $ ls -l /boot | awk '!/^total/ {print $5}' | r -e 'fsizes


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