I have a list of data frames that looks likes this:

dflist:
[[12]]
label         site
   <chr>        <int>
 [1] NODE_0000138    12
 [2] NODE_0000222    12
 [3] NODE_0000205    12
 [4] NODE_0000241    12
 [5] 061D03KR01      12
 [6] 061D03KR03      12

[[15]]
label         site
  <chr>        <int>
[1] NODE_0000203    15
[2] 061D03OR17      15
[3] 061D03OR19      15
[4] 061D03UR28      15

[[18]]
label         site
   <chr>        <int>
 [1] NODE_0000181    18
 [2] NODE_0000226    18
 [3] 061D03KR11      18
 [4] 061D03OR02      18
 [5] 061D03OR32      18`

I also have a data.frame with information:

df
  from to
1   12 18
2   12 35
3   15 18

I have been trying ways to create a new data.frame so that values are repeated according to the df rows.

The df 1st row is

from to
1   12 18

So, I would like to obtain all possible combinations from the listdf with 12 and 18:

NODE_0000138    12    NODE_0000181    18
NODE_0000138    12    NODE_0000226    18
NODE_0000138    12    061D03KR11      18
NODE_0000138    12    061D03OR02      18
NODE_0000138    12    061D03OR32      18

NODE_0000222    12    NODE_0000181    18
NODE_0000222    12    NODE_0000226    18
NODE_0000222    12    061D03KR11      18
NODE_0000222    12    061D03OR02      18
NODE_0000222    12    061D03OR32      18

NODE_0000205    12    NODE_0000181    18
NODE_0000205    12    NODE_0000226    18
NODE_0000205    12    061D03KR11      18
NODE_0000205    12    061D03OR02      18
NODE_0000205    12    061D03OR32      18`

…
…

And so on, for all of the df rows. I though about a for loop, but it gets messy. Any other ideas??

Thanks!!!

I have also been playing with rep, rep_along, but I can’t get it to repeat the amount of times I need it to.

I have also tried c(rep(data.frame(c(dflist[[1]][1],dflist[[1]][2])), nrow(dflist[[1]]))) just to see if I could get it repeated, but something is missing.