Reshaping Data from Long to Wide Format with the R reshape Package

Transforming Duplicate Rows to Columns with pivot_wider in R

Reshaping Wide Format Positive/Negative Data into Long Format Binary Outcome with R

Converting Dataframe from Long Format to Wide Format with Aligned Variables in R

Transforming Wide Format Data into Long Format with Additional Column Type

Reshaping Long Format Data into Sequences of Two: A Practical Guide to R and Dplyr Solutions