Let me restate my question.

Is there a straightforward way of ensuring I can use the variable name
USDCHF?  Is there a straight forward way of ensuring that when I delete a
variable by name I delete all copies in scope?

Worik


On Tue, Dec 11, 2012 at 11:08 AM, Duncan Murdoch
<murdoch.duncan@gmail.com>wrote:

> On 12-12-10 4:40 PM, Worik R wrote:
>
>> When I import the library timeSeries I get (at least) the variable USDCHF
>> imported too.
>>
>> I would like to delete it, but I cannot.  As you can see below.
>>
>
> You didn't import timeSeries, you attached it.  It is on your search list;
> you can see the full list using search().
>
> The first item on the search list is .GlobalEnv, the user's global
> environment.  You can create and delete items there.  You can't easily do
> so in the other items in the search list, they are essentially read-only.
>
>
>  Clearly I am doing something wrong.  What is it?
>>
>
> You need to learn more about how R does scoping.  I don't think the
> description in the Intro to R is sufficient; you probably need the R
> Language Definition discussion (or a third party book).
>
> Duncan Murdoch
>
>
>>  library(timeSeries)
>>>
>> Loading required package: timeDate
>>
>>> class(USDCHF)
>>>
>> [1] "timeSeries"
>> attr(,"package")
>> [1] "timeSeries"
>>
>>> rm(list=c("USDCHF"))
>>>
>> Warning message:
>> In rm(list = c("USDCHF")) : object 'USDCHF' not found
>>
>>> rm(USDCHF)
>>>
>> Warning message:
>> In rm(USDCHF) : object 'USDCHF' not found
>>
>>> class(USDCHF)
>>>
>> [1] "timeSeries"
>> attr(,"package")
>> [1] "timeSeries"
>>
>>>
>>>
>> I can assign to it...
>>
>>  USDCHF<-NULL
>>> class(USDCHF)
>>>
>> [1] "NULL"
>>
>>> get("USDCHF")
>>>
>> NULL
>>
>>>
>>>
>>
>> Worik
>>
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>>
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>>
>>
>

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