How to create a Two Dimensional List in R - Step by Step Examples

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How to create a Two Dimensional List in R ?

Answer

To create a Two-Dimensional List in R, you can use nested lists or the matrix function to initialize the elements.

✐ Examples

1 Create a 2D List of Integers

In this example,

We create a new list named matrix to represent the 2D list.
We use nested lists to initialize each element of the matrix with an integer value.
We print the 2D list to the console.

R Program

matrix <- list(
  list(1, 2, 3),
  list(4, 5, 6),
  list(7, 8, 9)
)
print(matrix)

Output

[[1, 2, 3], [4, 5, 6], [7, 8, 9]]

2 Create a 2D List of Strings

In this example,

We create a new list named matrix to represent the 2D list.
We use the matrix function to initialize the elements with string values.
We print the 2D list to the console.

R Program

matrix <- matrix(
  c('a', 'b', 'c', 'd', 'e', 'f'),
  nrow = 2,
  byrow = TRUE,
  dimnames = list(c('row1', 'row2'), c('col1', 'col2', 'col3'))
)
print(matrix)

Output

     col1 col2 col3
row1 'a'  'b'  'c' 
row2 'd'  'e'  'f'

Summary

In this tutorial, we learned How to create a Two Dimensional List in R language with well detailed examples.

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How to create a Two Dimensional List in R - Step by Step Examples

How to create a Two Dimensional List in R ?

Answer

✐ Examples

1 Create a 2D List of Integers

R Program

Output

2 Create a 2D List of Strings

R Program

Output

Summary

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