[R] "parallel" package

[admin at use-r.com]

Ah .. another thing I learnt. Thanks

> You seem confused.... the library Uwe is talking about is a function
> not a string....
>
> These work
>
> library(quantmod)
> library("quantmod")
>
> or
>
> pkg <- "quantmod"
>
> library(pkg) # Doesn't work!
>
> library(pkg, character.only = TRUE) # Works
>
> Michael
>
> On Sun, Apr 29, 2012 at 3:59 AM,  <admin at use-r.com> wrote:
>> I just tried it.
>>
>>> library <- "quantmod"
>>> library
>> [1] "quantmod"
>>> typeof(library)
>> [1] "character"
>>
>> So how do I , or anyone , assign a string without " "?
>>
>>> library <- quantmod
>> Error: object 'quantmod' not found
>>
>> What about this?
>>
>>> library <- c("quantmod")
>>
>> Does it do the job? Sorry if it has been asked. I'm still learning R.
>>
>>>
>>>
>>> On 29.04.2012 09:28, Indrajit Sengupta wrote:
>>>> You don't need quotes in the library statement, you can just use
>>>> library(parallel).
>>>
>>> Yes, a special (mis-)feature of library(). Since we are trying to teach
>>> R here, we should provide clean R code. In an ideal world, we would be
>>> able to say
>>>
>>> pkg <- "parallel"
>>> library(pkg)
>>>
>>> doing the same as
>>>
>>> library("parallel")
>>>
>>> which is unfortunately not possible, because library(pkg) tries a
>>> package called "pkg".
>>>
>>> Best,
>>> Uwe Ligges
>>>
>>>
>>>
>>>>
>>>> Regards,
>>>> Indrajit
>>>>
>>>>
>>>>
>>>> ________________________________
>>>> From: Uwe Ligges<ligges at statistik.tu-dortmund.de>
>>>> To: ya<xinxi813 at 163.com>
>>>> Cc: r-help at r-project.org
>>>> Sent: Saturday, April 28, 2012 11:57 PM
>>>> Subject: Re: [R] "parallel" package
>>>>
>>>>
>>>>
>>>> On 28.04.2012 20:18, ya wrote:
>>>>> Hi everyone,
>>>>>
>>>>> Anyone knows Where I can get the "parallel" package? The google
>>>>> results
>>>>> said this package has been released since R 2.14, but I could not
>>>>> find
>>>>> a
>>>>> place to get it.
>>>>>
>>>>> I am doing a multiple imputation for missing values, it is really
>>>>> time
>>>>> consuming. I figured maybe it's more efficient by paralleling my CPU.
>>>>> I
>>>>> got an intel dual core i5 processor in a Thankpad x201 laptop. And I
>>>>> have used install.packages ("parallel") in R 2.15 on both linux and
>>>>> windows xp, no package installed. So maybe this package is not on
>>>>> cran?
>>>>> Any idea?
>>>>
>>>> It is shipped as an R base packaage. Just use
>>>>
>>>> library("parallel")
>>>>
>>>> Uwe Ligges
>>>>
>>>>
>>>>> Thank you very much.
>>>>>
>>>>> ya
>>>>>
>>>>> ______________________________________________
>>>>> R-help at r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>