To convert a DataFrame to a Matrix in R using the ‘**as.matrix()**‘ function:

mat <- as.matrix(df)

For example:

# Create a DataFrame df <- data.frame( col_a = c(1, 2, 3), col_b = c(4, 5, 6), col_c = c(7, 8, 9) ) # Convert the DataFrame to a Matrix in R mat <- as.matrix(df) # Print the Matrix print(mat)

The resulted Matrix after the conversion:

```
col_a col_b col_c
[1,] 1 4 7
[2,] 2 5 8
[3,] 3 6 9
```

The following tutorial explains how to convert Matrix to DataFrame in R.