[R] require() is not giving TRUE / FALSE statements ?
murdoch at stats.uwo.ca
Tue Mar 10 21:58:09 CET 2009
On 10/03/2009 4:40 PM, Wacek Kusnierczyk wrote:
> Duncan Murdoch wrote:
>> On 10/03/2009 4:15 PM, Wolfgang Raffelsberger wrote:
>>> Dear list,
>>> ?require says :
>>> "... |require| is designed for use inside other functions; it returns
>>> |FALSE| and gives a warning (rather than an error as |library()| does
>>> by default) if the package does not exist ..."
>>> However when I run the following code I don't get any TRUE / FALSE
>>> statements (but the warning only).
>> You never printed the value, so you didn't see it. (It was returned
>> marked invisible, i.e. not for printing.)
> maybe it would help if the man page said 'returns invisibly' instead of
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