# R Split Matrix by Columns into List of Vectors (Example Code)

In this article, I’ll illustrate how to divide a matrix into a list of column-vectors in the R programming language.

## Exemplifying Data

my_matrix <- matrix(letters[1:20], # Example matrix in R nrow = 5) my_matrix # Show example matrix in RStudio # [,1] [,2] [,3] [,4] # [1,] "a" "f" "k" "p" # [2,] "b" "g" "l" "q" # [3,] "c" "h" "m" "r" # [4,] "d" "i" "n" "s" # [5,] "e" "j" "o" "t" |

my_matrix <- matrix(letters[1:20], # Example matrix in R nrow = 5) my_matrix # Show example matrix in RStudio # [,1] [,2] [,3] [,4] # [1,] "a" "f" "k" "p" # [2,] "b" "g" "l" "q" # [3,] "c" "h" "m" "r" # [4,] "d" "i" "n" "s" # [5,] "e" "j" "o" "t"

## Example: Applying split Function to Divide Matrix into List of Vectors

my_list <- split(my_matrix, # Splitting columns of matrix into list rep(1:ncol(my_matrix), each = nrow(my_matrix))) my_list # Show list of vectors in RStudio # $`1` # [1] "a" "b" "c" "d" "e" # # $`2` # [1] "f" "g" "h" "i" "j" # # $`3` # [1] "k" "l" "m" "n" "o" # # $`4` # [1] "p" "q" "r" "s" "t" # |

my_list <- split(my_matrix, # Splitting columns of matrix into list rep(1:ncol(my_matrix), each = nrow(my_matrix))) my_list # Show list of vectors in RStudio # $`1` # [1] "a" "b" "c" "d" "e" # # $`2` # [1] "f" "g" "h" "i" "j" # # $`3` # [1] "k" "l" "m" "n" "o" # # $`4` # [1] "p" "q" "r" "s" "t" #

## Further Resources & Related Articles

Below, you can find some further resources on topics such as vectors, matrices, and numeric values.