Thank you for your response.

Yes, using a call to data() after 1) building and 2) installing my own
package is exactly what I'm trying to accomplish.  I am building a package.
 I would like to load the data objects that are part of the custom package
that I have created and installed on my machine.  Apologies if I wasn't
clear about that part.


2011/3/28 Uwe Ligges <ligges@statistik.tu-dortmund.de>

>
>
> On 24.03.2011 16:51, andrew stewart wrote:
>
>> Hello all,
>>
>> I have,say 4 R objects...  bar1, bar2, bar3, bar4.. that I'd like to
>> include
>> in an R package "foobar".
>>
>> The desired functionality would be:
>>
>>  library(foobar)
>>> data(foo)
>>> ls()
>>>
>> [1] "bar1" "bar2" "bar3" "bar4"
>>
>> I've tried the following two approaches:
>>
>> 1) I created the file 'datalist' under pre-build directory 'foobar/data/'
>> with the following contents:
>> foo: bar1 bar2 bar3 bar4
>>
>> After package build and install, "data(foo)" reports that data set 'foo'
>> not
>> found (bar1, bar2, etc are all available individually, and are listed
>> under
>> data() as "bar1 (foo)".
>>
>
>
> If you want just one object "foo", then prpare a list
>
> foo <- list(bar1,...)
>
> that contains the 4 objects bar1, ... .
> You can load that objects and access the list components afterwards.
>
> I think you misunderstood the data concept: You can save objects and load
> them if the package is installed. That's it.
>
> Best,
> Uwe Ligges
>
>
>
>  2) I created an image via save.image resulting in foo.rda (containing
>> bar1,
>> bar2, etc).
>>
>> data(foo) now loads bar1 - bar4, but 'foo' doesn't appear in the list of
>> available datasets displayed when trying to tab complete within data().
>>
>>
>> So my question is, what's the correct approach for what I'm trying to do
>> here?  Any advice welcome and appreciated.
>>
>> Thanks,
>> Andrew
>>
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>>
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>>
>

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