How to split a data frame?

Question

I want to split a data frame into several smaller ones. This looks like a very trivial question, however I cannot find a solution from web search.

Answer 1

I just posted a kind of a RFC that might help you: Split a vector into chunks in R

x = data.frame(num = 1:26, let = letters, LET = LETTERS)
## number of chunks
n <- 2
dfchunk <- split(x, factor(sort(rank(row.names(x))%%n)))
dfchunk
$`0`
   num let LET
1    1   a   A
2    2   b   B
3    3   c   C
4    4   d   D
5    5   e   E
6    6   f   F
7    7   g   G
8    8   h   H
9    9   i   I
10  10   j   J
11  11   k   K
12  12   l   L
13  13   m   M

$`1`
   num let LET
14  14   n   N
15  15   o   O
16  16   p   P
17  17   q   Q
18  18   r   R
19  19   s   S
20  20   t   T
21  21   u   U
22  22   v   V
23  23   w   W
24  24   x   X
25  25   y   Y
26  26   z   Z

Cheers, Sebastian