Seth, good point. I think we should be able to do better...
On Mar 29, 2007, at 10:57 AM, Seth Falcon wrote:
> Prof Brian Ripley <[EMAIL PROTECTED]> writes:
>> The usual 'trick' to avoid this copy is
>>
>> storage.mode(x) <- "double"
>
> Hmm, this does not appear to avoid the copy for me. Using
Prof Brian Ripley <[EMAIL PROTECTED]> writes:
> The usual 'trick' to avoid this copy is
>
> storage.mode(x) <- "double"
Hmm, this does not appear to avoid the copy for me. Using R 2.5.0
alpha r40916 I get:
> x <- 1:10 * 2.3
> names(x)=LETTERS[1:10]
> storage.mode(x)
[1] "double"
On Wed, 28 Mar 2007, Duncan Murdoch wrote:
> On 3/28/2007 5:25 PM, Henrik Bengtsson wrote:
>> Hi,
>>
>> when doing as.double() on an object that is already a double, the
>> object seems to be copied internally, doubling the memory requirement.
>> See example below. Same for as.character() etc.
On 3/28/2007 8:17 PM, Henrik Bengtsson wrote:
> On 3/28/07, Duncan Murdoch <[EMAIL PROTECTED]> wrote:
>> On 3/28/2007 5:25 PM, Henrik Bengtsson wrote:
>>> Hi,
>>>
>>> when doing as.double() on an object that is already a double, the
>>> object seems to be copied internally, doubling the memory requ
On 3/28/07, Duncan Murdoch <[EMAIL PROTECTED]> wrote:
> On 3/28/2007 5:25 PM, Henrik Bengtsson wrote:
> > Hi,
> >
> > when doing as.double() on an object that is already a double, the
> > object seems to be copied internally, doubling the memory requirement.
> > See example below. Same for as.cha
On 3/28/2007 5:25 PM, Henrik Bengtsson wrote:
> Hi,
>
> when doing as.double() on an object that is already a double, the
> object seems to be copied internally, doubling the memory requirement.
> See example below. Same for as.character() etc. Is this intended?
>
> Example:
>
> % R --vanilla
On 3/28/07, Henrik Bengtsson <[EMAIL PROTECTED]> wrote:
> Hi,
>
> when doing as.double() on an object that is already a double, the
> object seems to be copied internally, doubling the memory requirement.
> See example below. Same for as.character() etc. Is this intended?
>
> Example:
>
> % R --
