How can I partition a matrix or dataframe into N equally-sized chunks with R? I want to cut the matrix or dataframe horizontally.
For example, given:
r = 8
c = 10
number_of_chunks = 4
data = matrix(seq(r*c), nrow = r, ncol=c)
>>> data
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 9 17 25 33 41 49 57 65 73
[2,] 2 10 18 26 34 42 50 58 66 74
[3,] 3 11 19 27 35 43 51 59 67 75
[4,] 4 12 20 28 36 44 52 60 68 76
[5,] 5 13 21 29 37 45 53 61 69 77
[6,] 6 14 22 30 38 46 54 62 70 78
[7,] 7 15 23 31 39 47 55 63 71 79
[8,] 8 16 24 32 40 48 56 64 72 80
I would like to have to cut data into a list of 4 elements:
Element 1:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 9 17 25 33 41 49 57 65 73
[2,] 2 10 18 26 34 42 50 58 66 74
Element 2:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[3,] 3 11 19 27 35 43 51 59 67 75
[4,] 4 12 20 28 36 44 52 60 68 76
Element 3:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[5,] 5 13 21 29 37 45 53 61 69 77
[6,] 6 14 22 30 38 46 54 62 70 78
Element 4:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[7,] 7 15 23 31 39 47 55 63 71 79
[8,] 8 16 24 32 40 48 56 64 72 80
With numpy in python, I can use numpy.array_split.