Compute Statistics Helper Functions

A small package containing helper utilities for creating function for computing statistics.


Introduction

The dostats R package is a compilation of helper utilities for computing statistics and operating on R as a language. It is particularly helpful with packages like plyr, but is useful anytime that simple functions have to be defined.

Details

There are at present four functions of note.

  • dostats creates a function that returns a single line data.frame from a list of functions.
  • compose createa a functional composition of an arbitrary number of functions nesting each call withing the other. %.% is a opperator alias for composition of two functions.
    In other words f%.%g is equivalant to function(x)f(g(x)). There are helper functions for compose that assist in creating functions
    • wargs specifies new default arguments.
    • onarg specifies the argument that should be first in the formals list.
  • seq_consecutive will create a vector form a source vector than incriments every time the source vector changes.
  • .T is a helper function for creating character vectors without having to insert quotes.

News

Version 1.3.2

  • Removed files and function related to hdf that are not ready for release but were inadvertantely released in 1.3.1

Version 1.3.1

  • Documentation Updates
  • wargs carries forward attributes of original function.

Version 1.3

  • Improved wargs

Version 1.1

update 3/8/2012 Two additions * seq_consecutive follows a vector incrimenting every time there is a change in the source vector. * .T is a helper function for creating non quoted character vectors.

dostats 1.0

Initial Release 2/8/2012

contains two primary functions

  • dostats collects functions into a single function to retruns a single row data frame.
  • compose and the operator alias %.% to nest functions within each other. Helper functions are:
  • wargs wraps a function with new arguments.
  • class.stats, integer.stats, numeric.stats, and factor.stats help dostats by only doing calling the functions if the variable matches the class specified. This is very helpful with ldply to create summary tables.

Reference manual

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install.packages("dostats")

1.3.2 by Andrew Redd, 4 years ago


https://github.com/halpo/dostats


Browse source code at https://github.com/cran/dostats


Authors: Andrew Redd <[email protected]>


Documentation:   PDF Manual  


GPL (>= 3) license


Imports stats

Suggests plyr, testthat


See at CRAN