gsubfn is like gsub but can take a replacement function or certain other objects instead of the replacement string. Matches and back references are input to the replacement function and replaced by the function output. gsubfn can be used to split strings based on content rather than delimiters and for quasiperlstyle string interpolation. The package also has facilities for translating formulas to functions and allowing such formulas in function calls instead of functions. This can be used with R functions such as apply, sapply, lapply, optim, integrate, xyplot, Filter and any other function that expects another function as an input argument or functions like cat or sql calls that may involve strings where substitution is desirable.
Package details 


Author  G. Grothendieck 
Date of publication  20140827 21:17:14 
Maintainer  G. Grothendieck <ggrothendieck@gmail.com> 
License  GPL (>= 2) 
Version  0.66 
URL  http://gsubfn.googlecode.com 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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