[R] How to assign value to a variable dynamically constructed

[Bert Gunter]

Try reading the Help files before posting here. That's what they're for.

?get

provides the answer in a note in the Help page.

Cheers,
Bert


Bert Gunter

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
   -- Clifford Stoll


On Tue, Jul 7, 2015 at 1:53 PM, Jun Shen <jun.shen.ut at gmail.com> wrote:
> Dear list,
>
> Let's say we have a variable (id), whose name is dynamically constructed.
> This variable represents a vector or data frame with many elements. Now I
> want to specifically assign a value to one of the elements. I couldn't get
> it right.
>
> test <- 'id' # "id" is dynamically constructed through paste()
>
> id <- 1:4
>
> # I can get the element by doing
>
> get(test)[2]
>
> # Now I want to assign a value to the second element of this dynamical
> variable.
>
> get(test)[2] <- 5  # doesn't work.
>
> Thanks a lot.
>
> Jun Shen
>
>         [[alternative HTML version deleted]]
>
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