[R] How to remove a package.

[Liviu Andronic]

On Sun, Nov 28, 2010 at 4:58 PM, Stephen Liu <satimis at yahoo.com> wrote:
>> data()
> displays "Data sets in package ‘AER’:"
>
> But;
>> library(Ecdat)
>> data()
> displays "Data sets in package ‘datasets’:
> a large datasets including those in package "Ecdat"?  NOt only Ecdat separately.
>
Read ?data. Try
data(package='AER')
data(package='Ecdat')

Regards
Liviu


> B.R.
> Stephen L
>
>
>
>
> ________________________________
> From: David Winsemius <dwinsemius at comcast.net>
>
> Cc: Stefan Grosse <singularitaet at gmx.net>; r-help at r-project.org
> Sent: Sun, November 28, 2010 11:16:34 PM
> Subject: Re: [R] How to remove a package.
>
>
> On Nov 28, 2010, at 7:16 AM, Stephen Liu wrote:
>
>> Hi Stefan,
>>
>> Tks for your advice.
>
> snipped
>
>> Installation went through w/o problem.
>>
>>> library(Ecdat)
>>> data()
>>
>> Data sets in package ‘datasets’  NOT 'Ecdat'
>>
>>> ??Ecdat
>> ...
>> Ecdat::Caschool         The California Test Score Data Set
>> Ecdat::Griliches        Wage Datas
>> Ecdat::MCAS             The Massashusets Test Score Data Set
>> Ecdat::MunExp           Municipal Expenditure Data
>> Ecdat::Orange           The Orange Juice Data Set
>> Ecdat::Solow            Solow's Technological Change Data
>> Ecdat::TranspEq         Statewide Data on Transportation Equipment
>>                        Manufacturing
>> ....
>>
>>
>> Those files are in Ecdat packages.
>>
>>> Caschool
>> Error: object 'Caschool' not found
>>
>>> MCAS
>> Error: object 'MCAS' not found
>
> Because loading the package does not necessarily register the datasets:
>
>> require(Ecdat)
> Loading required package: Ecdat
>> data()  #------> produces a large list including
> Car                              Stated Preferences for Car Choice
> Caschool                         The California Test Score Data Set
> Catsup                           Choice of Brand for Catsup
> Cigar                            Cigarette Consumption
>> str(Caschool)
> Error in str(Caschool) : object 'Caschool' not found
>
>> data(Car)
>> str(Car)
> 'data.frame':    4654 obs. of  70 variables:
>  $ choice    : Factor w/ 6 levels "choice1","choice2",..: 1 2 5 5 5 5
> 2 5 5 2 ...
>  $ college   : num  0 1 0 0 0 0 1 1 0 1 ...
>  $ hsg2      : num  0 1 1 0 1 0 1 0 0 0 ...
>
> Note that this dataset was NEVER  spelled "car".
>
> --
> David.
>> ________________________________
>> From: Stefan Grosse <singularitaet at gmx.net>
>>
>> Sent: Sun, November 28, 2010 7:23:19 PM
>> Subject: Re: [R] How to remove a package.
>>
>> Am 27.11.2010 09:48, schrieb Stephen Liu:
>>
>>> I found the datasets of AER
>>
>> cool.
>>
>>> detach("package:AER", unload = TRUE)
>>
>> detach(package:AER) works for me.
>>
>>> data()
>>> still found "car" there.
>>
>> you mean "cars" ? This is not part of AER but in a base R
>> installation.
>>
>>>> install.packages("EcDat")
>>
>>> Where can I download/install EcDat?  TIA
>>
>> It is case sensitive, try install.packages("Ecdat") it works for me...
>>
>> Maybe you should try a little bit more...
>>
>> hth
>> Stefan
>>
>>
>>
>>     [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> 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.
>
> David Winsemius, MD
> West Hartford, CT
>
>
>        [[alternative HTML version deleted]]
>
>
> ______________________________________________
> 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.
>
>



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