[R] unlist & dataframes

[Naira]

Dear all,

I would like to know whether it is possible to unlist elements and keep the
original format of the data.
To make it more clear, let me give an exemple:
I have a list l of dataframes that I created with apply but which looks like
this:

x1=data.frame(Name=LETTERS[1:2],Age=1:2)
x2=data.frame(Name=LETTERS[3:4],Age=3:4)
l=list(x1,x2)
l
[[1]]
  Name Age
1    A   1
2    B   2

[[2]]
  Name Age
1    C   3
2    D   4

I would like to unlist l to create a dataframe with 2 columns and 4 rows but
keeping the format of Name (character) and Age (numeric).

Now when I unlist l, I obtain :

unlist(l)
Name1 Name2  Age1  Age2 Name1 Name2  Age1  Age2
    1     2     1     2     1     2     3     4

Is there a way to at least obtain something like
A 1 B 2 C 3 D 4 as result from the unlist??

Thanks a lot for your replies
Naira


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