deparse（substitute（））不能像我想要的那样工作

Question

Code to reproduce the problem:

data(iris)
L=list(data=iris)
print(deparse(substitute(L[[1]])))
[1] "L[[1]]"

I want the result to be "iris" instead of "L[[1]]", is there a way?

Answer 1

L <- list(data=as.name("iris"))
L$data

And to actually retrieve the data:

eval(L$data)

But what you should be doing, rather than playing around with eval and deparse , is storing the name of the dataset along with its contents:

L <- list(iris=iris)
names(L)
L