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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