Create empty dataframe in R with same columns

Question

 names(U1)

[1] \"username\"     \"review_count\" \"forum_posts\"  \"age\"          \"avg_interval\"
[6] \"avg_sim\"      \"class\"

So how do I cre

Answer 1

You can do this:

U1.RN <- U1[0,]

Answer 2

Along the lines of df[0,] you can also use a boolean mask which might make the code more readable:

 df[FALSE,]

Answer 3

Using dplyr, there are a few good options:

slice(U1, 0)
filter(U1, FALSE)
filter(U1, NA)

The slice approach is probably clearest.