How do I append dataframes in a list?

Question

I have this list:

list(structure(list(year = numeric(0), quarter = numeric(0), 
    Other = numeric(0), flow = character(0), country = character(0), 
    imfcode = integer(0), ISO3C = character(0)), row.names = integer(0), class = "data.frame"), 
    structure(list(year = numeric(0), Other = numeric(0), flow = character(0), 
        country = character(0), 
 ISO3C = character(0)), row.names = integer(0), 
class = "data.frame"))

Each element of the list is a dataframe, I believe, although class() says that each element is actually a list of a dataframe. I wish to rbind all of these dataframes together. Is there an efficient way to do this? Thank you!

You can use `rbindlist(lst1)` from `data.table` or `bind_rows(lst1)` from `dplyr` — akrun, Dec 10 '19 at 23:31
This might help :- https://stackoverflow.com/questions/18003717/efficient-way-to-rbind-data-frames-with-different-columns — Ronak Shah, Dec 10 '19 at 23:55
@akrun: holy! that's so efficient. I didn't know the existence of this function in the dplyr package. Thanks a lot! — Min Nguyen, Dec 11 '19 at 20:41

score 0 · Accepted Answer · answered Dec 11 '19 at 21:30

0

We can use rbindlist from data.table

library(data.table)
rbindlist(lst1)

Or

library(dplyr)
bind_rows(lst1)

answered Dec 11 '19 at 21:30

akrun

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How do I append dataframes in a list?

1 Answers1