Here's an example code that demonstrates how to use the `groupby` and `agg` functions together:

Canceling Internal Method Calls: Understanding the Limitations of `cancelPreviousPerformRequestsWithTarget`

Grouping Rows into a New Pandas DataFrame with One Row per Group Based on Conditions

Update Column Values Based on Row-Specific Conditions in R Programming Language

Understanding and Resolving Issues with Dynamic Figures in PDF Documents Using R and Knitr

Using Window Functions to Count Non-Parent Values in Hive Data

Handling Pyodbc Errors with Custom Error Messages in SQLAlchemy Applications

Filtering DataFrames to Show Only the First Day in Each Month Using Pandas

Understanding Missing Values in Pandas Library: A New Approach to Replace Missing Values with Mean

Transforming Data with Box-Cox Transformation in R: A Step-by-Step Guide for Stabilizing Variance and Improving Linearity