Cleaning Wide Data by Rearranging Columns Based on Shared Variables and Time Points

Extracting Objects from a List Based on Element Name in R

Mixed Effects Modeling with lmer() and Plotting Growth Curves: A Comprehensive Guide

Data Frame Merging in R: A Step-by-Step Guide

Receiver Operating Characteristic Curve in R using ROCR Package for Binary Classification Models

Comparing rpy2 and RSPerl: Interfacing with R from Python for Data Analysis and Modeling

Understanding the R Error "object ‘windows’ is not exported by 'namespace:grDevices'

Understanding Nomograms and Cox Regression Models in R: A Deep Dive into HDnom and Dynnom Packages for Survival Analysis and Data Visualization

Percentile Calculation and Dummy Rate Calculation for All Columns in R or SAS: A Comparative Analysis

Combining Columns in a Dataframe Using R: 3 Effective Methods