In this R Matrix Tutorial with examples, you will learn what is Matrix (matrices)? its features, its advantages, and how to use Matrix in real-time with sample examples. Also, you will learn how to create Matrix, modify its’ values, accessing its values.
All examples provided in this R Matrix are basic, simple, and easy to practice for beginners who are enthusiastic to learn R and advance their careers.
Note: In case you can’t find the Matrix examples you are looking for on this tutorial page, I would recommend using the Search option from the menu bar to find your tutorial and sample example code.
1. What is R Matrix?
Matix is also called Matrices which is an R data structure that is used to store data in two-dimensional rows and columns. Below are some key points to know and remember about Matrix.
- Matrices or Matrix is a data structure.
- The matrix is two-dimensional.
- It stores data in rows and columns.
- All elements in Matrix should be of the same type (numeric, logical, character, etc.).
- Matrix is a collection of two or more R Vectors.
- R Data Frame is another data structure with two dimensional to store elements of different data types.
2. Create Matrix
By using the matrix() function you can create a matrix object in R Programming Language.
# Create R matrix
data <- c(10,11,12,13,14,15,16,17,18)
mtx <- matrix(data,nrow=3,ncol=3,byrow=TRUE)
mtx
Yields below output.
[,1] [,2] [,3]
[1,] 10 11 12
[2,] 13 14 15
[3,] 16 17 18
3. Access Values of Matrix
4. Modify Matrix Values
Conclusion
In this article, you have learned what is a matrix in R Programming? how to create it? and access its elements. Matrix is a data structure that is used to store values in two-dimensional rows and columns and all elements should be of the same basic type.
