[R] Recyclable

Hadley Wickham hadley at rice.edu
Mon Aug 23 17:33:54 CEST 2010


Hi all,

Is there a function to determine whether a set of vectors is cleanly
recyclable? i.e. is there a common function for detecting the
error/warnings that underlie the following two function calls?

> 1:3 + 1:2
[1] 2 4 4
Warning message:
In 1:3 + 1:2 :
  longer object length is not a multiple of shorter object length

> data.frame(1:3, 1:2)
Error in data.frame(1:3, 1:2) :
  arguments imply differing number of rows: 3, 2


Hadley

-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/



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