data.matrix;

The data.matrix() function in R is used to convert a data frame or other object into a matrix. It creates a matrix where each column represents a variable and each row represents an observation. The resulting matrix will have the same number of rows and columns as the original data frame.

Usage:

data.matrix(x)

Arguments:

x: A data frame or other object to be converted into a matrix.

Example:

# Create a data frame
df <- data.frame(x = c(1, 2, 3), y = c(4, 5, 6))

# Convert data frame to matrix
mat <- data.matrix(df)

# Print matrix
mat

Output:

x y
[1,] 1 4
[2,] 2 5
[3,] 3 6