Reshaping Data Frame into Contingency Table in R Using gdata Library

Updating Column String Value Based on Multiple Criteria in Other Columns Using Boolean Masks and Chained Comparisons

Pivoting Long Data to Wide Format with Counts and Percentages in R

Multiplying Data Frame Cells with Weights Using Dplyr

Calculating Annual Standardized Precipitation Index (SPI) for Multiple Columns using Precintcon R Package: A Step-by-Step Guide to Efficient Data Analysis and Visualization.

Removing Outliers from a Data Frame in R: Methods and Examples

Transposing Single Column DataFrames in R: A Pivot Operation

Matching Values Across Columns for Row-by-Row Retrieval in R

Filtering Rows Based on Swapped Combinations: A Comprehensive Approach

Plotting Pairs of Rows from a Dataset Together with ggplots2 in R