[R] Clean programming with R

[cgenolin at u-paris10.fr]

>> library(codetools)
>> findGlobals(power)

Thanks for your answer.
In addition, findGlobals(power,FALSE) gives the list of the globals 
variables alone :

> findGlobals(power,F)
$functions
[1] "^"      "{"      "<-"     "return"

$variables
[1] "pp"


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