R Matrix-Programs Archives

Subset DataFrame and Matrix by Row Names in R

Last Updated: 26 October 2021

In this article, we are going to see how to evaluate subset dataframe and matrices by row name. Method 1: Subset dataframe by row namesThe rownames(df) method in R is used...read more

How to Create the Identity Matrix in R?

Last Updated: 28 November 2021

In this article, we will discuss how to create an Identity Matrix in R Programming Language.Identity matrices are the matrices that contain all the zeros, except diagonal ...read more

Create Two 2x3 Matrix and Add, Subtract, Multiply and Divide the Matrixes in R

Last Updated: 02 June 2022

In this article, we will create two matrices with 2 rows and 3 columns each, then add, subtract, multiply and divide these two matrices in R Programming language.We can cr...read more

How to Extract Diagonal Elements of a Matrix in R Without Using diag Function?

Last Updated: 02 June 2022

In this article, we will see how to extract diagonal elements of a matrix in R Programming Language without using diag() function.Matrix is a rectangular arrangement of nu...read more

How to Transpose a Matrix Without Using t() Function in R

Last Updated: 02 June 2022

In this article, we will Transpose a Matrix without using t() function in R Programming Language.Transpose of a matrix is an operation in which we convert the rows of the ...read more

How to Set the Diagonal Elements of a Matrix to 1 in R?

Last Updated: 02 June 2022

In this article, we will discuss how to set the diagonal elements of a Matrix to 1 in R Programming Language.Matrix is a rectangular arrangement of numbers in rows and col...read more

Fill Matrix With Loop in R

Last Updated: 02 June 2022

In this article, we will see how to fill a matrix with a loop in R Programming Language.To create a matrix in R you need to use the function called matrix(). The arguments...read more

Create a matrix from a list of vectors using R

Last Updated: 30 April 2025

In R, vectors can beinteger, double, character, logical, complex and rawtypes. A vector is created using the c() function:a - c(val1, val2, ...Creating a List of VectorsA ...read more

Matrix multiplication in R using for loop

Last Updated: 28 April 2025

The matrix multiplication is a basic operation in the linear algebra. In R Programming Language we can perform matrix multiplication using a for loop, which provides a bas...read more

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Generate a Random Symmetric Matrix using R

Last Updated: 28 April 2025

A symmetric matrix is a square matrix whose elements are mirrored across its main diagonal. In other words, if A is a square matrix of order n x n, then A is symmetric if ...read more

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Apply function to each column of matrix in R

Last Updated: 12 April 2024

In this article, we will explore a method to apply the function to each matrix column by using R Programming Language.How to apply the function to each column of the matri...read more

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Generate a block-diagonal matrix using R

Last Updated: 16 April 2024

R language is a powerful and open-source programming language, is widely used for statistical software and data analysis. One of the many functionalities that R offers is ...read more

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Randomize rows of a matrix in R

Last Updated: 25 March 2024

In this article, we will examine various methods to randomize rows of a matrix in the R Programming Language.What is a matrix?A matrix is a two-dimensional arrangement of ...read more

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Transpose sparse matrix in R

Last Updated: 16 April 2024

In R Programming language there's a package called Matrix that's great for dealing with sparse matrices. When you transpose a matrix, you swap its rows and columns. But wi...read more

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How to Create an Average Distance Matrix Based on Matching Prefix Column and Row Names in R?

Last Updated: 26 June 2024

Creating an average distance matrix based on matching prefix column and row names in R can be very useful in various fields, such as bioinformatics and text analysis. This...read more

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