[R] Using str() in a function.

[David Winsemius]

On Jul 13, 2011, at 10:54 PM, andrewH wrote:

> David --  Ah! Excellent. OK, that explains Dennis's function's output.
> Print(str(X)) evaluates str(X), sending the usual str() output to the
> console as a side effect, and then prints what str() returns, which  
> is NULL.
> And invisible() prints NULL again,

almost ... it _returns_ NULL ... without printing

> but we don't see NULL NULL, because the
> second one is invisible.
>
> Still puzzled by the order of my output, though.

Dalgaard's explanation didn't work for you?

> andrewH
>
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David Winsemius, MD
West Hartford, CT