On Wed, 14 Dec 2005, Tony Plate wrote:
>
> That's what I was trying to say: the whole truth is that numeric index
> vectors that contain positive integral quantities can also contain
> zeros. Upon rereading this passage yet again, I think it is more
> misleading than merely incomplete: the phrasin
Tony Plate <[EMAIL PROTECTED]> writes:
> I appreciate the explanation that some details should not appear in the
> help pages or the Introduction to R manual.
>
> However, I am puzzled by this part of Prof Ripley's response:
>
> TP> [...] "An Introduction to R" [...] says this about
> TP> numer
I appreciate the explanation that some details should not appear in the
help pages or the Introduction to R manual.
However, I am puzzled by this part of Prof Ripley's response:
TP> [...] "An Introduction to R" [...] says this about
TP> numeric indices:
TP> 2. A vector of positive integral q
?"[" says
See Also:
'list', 'array', 'matrix'.
'[.data.frame' and '[.factor' for the behaviour when applied to
data.frame and factors.
'Syntax' for operator precedence, and the _R Language_ reference
manual about indexing details.
and the `indexing details' are in
The other place its discussed is in 3.4.1 of the R Language Definition:
http://finzi.psych.upenn.edu/R/doc/manual/R-lang.html#Indexing-by-vectors
On 12/13/05, Tony Plate <[EMAIL PROTECTED]> wrote:
> Yes, 0/1 (numeric) are intended to be used as index vectors -- and they
> have the semantics of nu
The other place its discussed is in 3.4.1 of the R Language Definition:
http://finzi.psych.upenn.edu/R/doc/manual/R-lang.html#Indexing-by-vectors
On 12/13/05, Tony Plate <[EMAIL PROTECTED]> wrote:
> Yes, 0/1 (numeric) are intended to be used as index vectors -- and they
> have the semantics of nu
Yes, 0/1 (numeric) are intended to be used as index vectors -- and they
have the semantics of numeric indices, which is that 0 elements in the
index are omitted from the result. This can be a very useful mode of
operation in many situations.
I was going to write "This is described in both the
