Optimizing Vectorized Operations and Column Selection in Python Data Manipulation Tasks

Applying a Function that Takes Columns and Rows of Matrices as Input with a Matrix as Output Without Using Loops in R

Filtering Values within a Percentage Range Based on the Last Non-Filtered Value in a Pandas DataFrame

Performing Regression in R Using Vectorization and Matrices: A Solution for Improved Efficiency

Creating a New Vector Based on Conditions in R: A Performance Comparison