[R] error in exists.....

Andrew Simmons
2022-12-27T17:48:44Z

exists() is for bindings in an environment, not for names in a list. try

"T1A1" %in% names(E$L[[i]])

instead


On Tue, Dec 27, 2022, 12:36 akshay kulkarni <akshay_e4 at hotmail.com>
wrote:

> Dear members,
>                              I have the following code:
> >  E <- new.env()
> >  E$L <- list()
> >  i <- 1
> >   E$L[[i]]$T1A1 <- Sys.time()
> > exists("T1A1", where = E$L[[i]])
> Error in list2env(list(1, T1A1 = 1672161002.38743), NULL,
<environment>) :
>   attempt to use zero-length variable name
>
> I want the output of the exists() function to be TRUE. In any case:
>
> > E$L[[1]]$T1A1
> [1] "2022-12-27 22:40:02 IST"
>
> Please help me solve this conundrum....
>
> Thanking you,
> Yours sincerely,
> AKSHAY M KULKARNI
>
>
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>
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