How to split a data frame by row number?

Question

My goal is to split a df such that row 1-21 is one data frame, and row 22-39 make up another data frame. I can't find how to do that anywhere.Thanks!

df1 = df[1:21,] for the first one. please post a reproducible example. https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example. — Diego, Apr 04 '20 at 19:00

score 0 · Accepted Answer · answered Apr 04 '20 at 19:00

0

You can use split using data.table. Assuming you want a more general version of your problem (where you bundle together every 20 observations)

library(data.table)
setDT(df)
split(df, by = floor(1:nrow(df)/20))

answered Apr 04 '20 at 19:00

linog

score 0 · Answer 2 · edited Apr 04 '20 at 19:24

0

You can split data frames by selecting just the rows or the columns that you need and associating them to a new object:

new_df1 <- df[1:21, ]

new_df2 <- df[22:39, ]

edited Apr 04 '20 at 19:24

Greg

answered Apr 04 '20 at 19:00

2 Answers2