Accessing Columns of a Matrix Using the Entries of Another Matrix R

Squaring Matrices in R: A Guide to Efficient Methods

Differences Between Data Frames and Matrices in R: A Comprehensive Guide

Reshaping Three-Collar Data Frames to Matrix Format Using R

Deleting Columns and Rows from a Kinship Matrix in R Using dimnames and Subset Methods

Customizing Outer and Vectorized Functions for Efficient Computation in R.

Calculating Probabilities in a Transition Matrix for Markov Models: A Step-by-Step Guide

Splitting Matrix or Dataset in R by Dependent Column