Modern R Programming Cookbook

How to do it…

There are several ways to create a matrix, but the most convenient way to create a matrix is through the use of the matrix() function from base R. Let's perform the following steps to learn about creating a matrix:

1. Execute the following code snippet that depicts a matrix of order 2 x 2 with all elements equal to 1:

        matA <- matrix(1, nrow=2, ncol=2)        matB <- matrix(1:9, nrow=3, ncol=3, byrow=TRUE)

2. There are alternative ways to create a matrix, such as, binding two or more vectors to create a two-dimensional representation as follows:

        Vec1 <- 1:3        Vec2 <- 3:1

3. Now, bind the preceding two vectors as two different rows to create a matrix as follows:

        matC <- rbind(Vec1, Vec2)

4. Alternatively, you could bind the two vectors as ...