Determining Last Observation in Time Series Data Using R's dplyr and tidyr Libraries

Remove Entire Groups of Values if Any Exceed Specified Threshold in Pandas Datasets

Handling Multiple Data Frames in R with Different Column Names Using dplyr and tidyr Packages

How to Ignore Default/Placeholder Values in Shiny SelectInput Widgets

Indexing a DataFrame with Two Vectors to Add Metadata Using Classical and Functional Programming Approaches in R

Counting Last Observations of Each Company with Specific Value in costat and Counting dlrsn per Year Using Dplyr in R.

How to Use do.call with dplyr's Non-Standard Evaluation System for Dynamic Data Transformations

Grouping Data in R Using the gl() Function for Integer Values

Creating a New Column by Combining Mutually Exclusive Columns in R Using dplyr Package

Generating the Same Random Sample Each Time in a Loop Using Sample_frac