How to Iterate over a Two Dimensional Vector in R

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How to Iterate over a Two Dimensional Vector in R ?

Answer

To iterate over a two-dimensional vector in R, you can use nested loops.

✐ Examples

1 Iterate over a Numeric Two-Dimensional Vector

In this example,

We use nested for loops to iterate over each element of the two-dimensional vector.
The outer loop iterates over the rows, and the inner loop iterates over the columns.
Finally, we print each element of the two-dimensional vector to standard output.

R Program

# Step 1: Iterate over a numeric two-dimensional vector
matrix <- list(c(1, 2, 3), c(4, 5, 6), c(7, 8, 9))

# Step 2: Nested loops to print each element
for (i in 1:length(matrix)) {
  for (j in 1:length(matrix[[i]])) {
    print(matrix[[i]][j])
  }
}

Output

2 Iterate over a Character Two-Dimensional Vector

In this example,

We use nested for loops to iterate over each element of the two-dimensional vector.
The outer loop iterates over the rows, and the inner loop iterates over the columns.
Finally, we print each element of the two-dimensional vector to standard output.

R Program

# Step 1: Iterate over a character two-dimensional vector
matrix <- list(c('a', 'b', 'c'), c('d', 'e', 'f'), c('g', 'h', 'i'))

# Step 2: Nested loops to print each element
for (i in 1:length(matrix)) {
  for (j in 1:length(matrix[[i]])) {
    print(matrix[[i]][j])
  }
}

Output

a
b
c
d
e
f
g
h
i

Summary

In this tutorial, we learned How to Iterate over a Two Dimensional Vector in R language with well detailed examples.

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How to Iterate over a Two Dimensional Vector in R

How to Iterate over a Two Dimensional Vector in R ?

Answer

✐ Examples

1 Iterate over a Numeric Two-Dimensional Vector

R Program

Output

2 Iterate over a Character Two-Dimensional Vector

R Program

Output

Summary

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