Re: [R] environments

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Tue, 26 Aug 2008 11:32:35 -0400

On 8/26/2008 9:44 AM, Peter Dalgaard wrote:

> Antje wrote:

>> Okay, I see, there is no really "easy" way (I was wondering whether I
>> can set an environment as default for new created variables). Is there
>> any difference if I call
>>
>> myenv$myvar <- 10
>> or
>> assign("myvar",10, env=myenv)
>> ?
>>
> No. And with(myenv, myvar <- 10) is also the same. However, you do have
> to be careful with
> with(myenv, myvar <- x) vs. myenv$myvar <- x because it might be
> different "x".

It's a little unfortunate that

with(myenv, myvar <- x)

works when myenv is an environment but not a list, while

mylist <- within(mylist, myvar <- x)

works when mylist is a list but not an environment. Is this something that should be fixed?

Duncan Murdoch



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