[R] How to take out the content of character string
wwwhsd at gmail.com
Thu Mar 11 01:47:35 CET 2010
On Wed, Mar 10, 2010 at 7:50 PM, Thomas Lumley <tlumley at u.washington.edu> wrote:
> On Wed, 10 Mar 2010, baptiste auguie wrote:
>> it's generally considered a bad practice but try this,
>> On 10 March 2010 07:46, jq81 <jingqian81 at gmail.com> wrote:
>>> My question is represented by the following example.
>>> For example, I have a character string a, which is defined as
>>> AA="list(x=1, y=2)"
>>> I want to take out the content of AA by using some function, so that I
>>> obtain the following expression automatically.
>>> list(x=1, y=2)
> This is the situation where it isn't considered bad practice. If someone
> hands you a string with code in it, the only way to parse it is with
I think that Is there another way:
> The problem with eval(parse()) is when people use it to do macro processing
> or other things that are much better done with expressions.
> Thomas Lumley Assoc. Professor, Biostatistics
> tlumley at u.washington.edu University of Washington, Seattle
> R-help at r-project.org mailing list
> 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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