How to append rows to an R data frame

Question

I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame.

I am initializing an empty

Answer 1

My solution is almost the same as the original answer but it doesn't worked for me.

So, I gave names for the columns and it works:

painel <- rbind(painel, data.frame("col1" = xtweets$created_at,
                                   "col2" = xtweets$text))