R- Appending new data frames in a for loop-CodePudding

I'm trying to append dataframes of tweets which i generate in a for loop to one another at the end of each iteration of a for-loop:

replys <- data.frame()
for (i in 1:nrow(i_tweets)) {                
  iteration_i <- get_all_tweets(
    conversation_id= i_tweets$conversation_id[i],  
    start_tweets = "2017-05-16T00:00:00Z",        
    end_tweets = "2022-08-06T00:00:00Z",
    n= 1,
    bearer_token = get_bearer(),
    data_path = "replys/")
  rbind(replys, iteration_i)}

I know that the get_all_tweets function works fine and that the loop is successfully iterating over the rows of my input data. But at the end I always end up with the iteration_i-dataframe containing the tweets for the last iteration but the replys-dataframe remains empty. Can you tell me whats my error and how I can fix it, so that the loop iterates over all my rows and finally binds all new dataframes together?

CodePudding user response：

You are not updating your data frame replys while rbinding it with iteration_i data. Please try below code:

replys <- data.frame()
for (i in 1:nrow(i_tweets)) {                
  iteration_i <- get_all_tweets(
    conversation_id= i_tweets$conversation_id[i],  
    start_tweets = "2017-05-16T00:00:00Z",        
    end_tweets = "2022-08-06T00:00:00Z",
    n= 1,
    bearer_token = get_bearer(),
    data_path = "replys/")
  replys<-rbind(replys, iteration_i)}