# Choleski Decomposition in R (Example) | Factorization with chol() Function

In this R tutorial youâ€™ll learn how to conduct a Choleski decomposition (or factorization) **using the chol function**.

Table of contents:

Youâ€™re here for the answer, so letâ€™s get straight to the example.

## Constructing Example Data

First, we need to create some data that we can use in the following examples:

my_mat <- matrix(c(7, 1, 1, 4), nrow = 2) # Create example matrix my_mat # Print example matrix

Have a look at the previous table. It shows that our example data matrix has two rows and two numerical variables.

## Example: Perform Choleski Decomposition Using chol() Function

The following syntax illustrates how to apply the chol function to conduct a Choleski decomposition in R.

Consider the following R code:

my_mat_chol <- chol(my_mat) # Apply chol function my_mat_chol # Print output matrix

As shown in Table 2, we have created a new matrix object containing the Choleski factorization of our input matrix.

## Video & Further Resources

In case you need further explanations on the R codes of the present page, I recommend watching the following video on my YouTube channel. In the video, Iâ€™m explaining the contents of this post:

*The YouTube video will be added soon.*

Furthermore, you may read the related articles on my website. I have published several articles already.

To summarize: You have learned in this article how to **apply the chol function** in R programming. Donâ€™t hesitate to let me know in the comments, in case you have further questions.

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