On Sat, Jul 7, 2018 at 11:19 PM, Gabe Becker wrote:
> Hadley,
>
>
> On Sat, Jul 7, 2018 at 1:32 PM, Hadley Wickham wrote:
>>
>> On Sat, Jul 7, 2018 at 1:50 PM, Gabe Becker wrote:
>> > Hadley,
>> >
>> >>
>> >> I was thinking primarily of completing the set of is.matrix() and
>> >> is.array(), or
On Sat, Jul 7, 2018 at 3:48 PM, Ott Toomet wrote:
> Thanks, Hadley for bringing this up:-)
>
> I am teaching R and I can suggest 5 different definitions of 'vector':
>
> a) vector as a collection of homogeneous objects, indexed by [ ] (more
> precisely atomic vector). Sometimes you hear that in R
Gabe,
I agree that
If by standard you mean commonly used/understood, though, I doubt
> most R users would understand a list to be a vector. I think most people
> think of atomic vectors exclusively when they hear "vector" unless they've
> very specifically been trained not to do so.
However, a c
Hadley,
On Sat, Jul 7, 2018 at 1:32 PM, Hadley Wickham wrote:
> On Sat, Jul 7, 2018 at 1:50 PM, Gabe Becker wrote:
> > Hadley,
> >
> >>
> >> I was thinking primarily of completing the set of is.matrix() and
> >> is.array(), or generally, how do you say: is `x` a 1d dimensional
> >> thing?
> >
Hello,
Inline.
Às 21:32 de 07-07-2018, Hadley Wickham escreveu:
On Sat, Jul 7, 2018 at 1:50 PM, Gabe Becker wrote:
Hadley,
I was thinking primarily of completing the set of is.matrix() and
is.array(), or generally, how do you say: is `x` a 1d dimensional
thing?
Can you clarify what you
Thanks, Hadley for bringing this up:-)
I am teaching R and I can suggest 5 different definitions of 'vector':
a) vector as a collection of homogeneous objects, indexed by [ ] (more
precisely atomic vector). Sometimes you hear that in R, "everything is a
vector", but this is only true for atomic
On Sat, Jul 7, 2018 at 1:50 PM, Gabe Becker wrote:
> Hadley,
>
>>
>> I was thinking primarily of completing the set of is.matrix() and
>> is.array(), or generally, how do you say: is `x` a 1d dimensional
>> thing?
>
>
> Can you clarify what you mean by dimensionality sense and specifically 1d
> he
Hadley,
> I was thinking primarily of completing the set of is.matrix() and
> is.array(), or generally, how do you say: is `x` a 1d dimensional
> thing?
>
Can you clarify what you mean by dimensionality sense and specifically 1d
here?
You can have a 1d array which is different from what your pr
On Sat, Jul 7, 2018 at 12:54 PM, Duncan Murdoch
wrote:
> On 07/07/2018 1:20 PM, Hadley Wickham wrote:
>>
>> Hi all,
>>
>> Is there are base function that I've missed that tests if an object is
>> a vector in the dimensionality sense, rather than the data structure
>> sense? i.e. something that che
On 07/07/2018 1:20 PM, Hadley Wickham wrote:
Hi all,
Is there are base function that I've missed that tests if an object is
a vector in the dimensionality sense, rather than the data structure
sense? i.e. something that checks is.null(dim(x)) ?
is.vector() is trivially disqualified since it als
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