📅 2023-08-25 — Session: Resolved age binning and DataFrame issues in Python

🕒 18:40–19:10
🏷️ Labels: Pandas, Dask, Data_Processing, Age_Binning
📂 Project: Dev
⭐ Priority: MEDIUM

Session Goal

The primary goal of this session was to address and resolve issues related to age binning and DataFrame handling in Python using Pandas and Dask.

Key Activities

  • Fixing Age Binning Error: Corrected an error when invoking the .compute() method on a pandas Series within the map_partitions function by calculating global age bins.
  • Diagnosing DataFrame Issues: Ensured the PERSONA variable retained its DataFrame structure instead of converting to a Series.
  • Handling Quantile Binning Discrepancies: Investigated discrepancies in quantile binning and suggested using numpy’s percentile function for more accurate bin sizes.
  • Implementing Age Binning: Categorized ages into bins and verified the type and value counts of the PERSONA dataset.
  • Conversion from Dask to Pandas: Transitioned the PERSONA DataFrame from Dask to Pandas post-binning and confirmed the correctness of the operation.
  • Modifying Dask DataFrame Process: Adjusted the process to retain PERSONA as a Dask DataFrame without using compute() during age bin creation.
  • Handling Environment Reset: Re-imported modules and reloaded datasets following an environment reset.

Achievements

  • Successfully resolved age binning issues and ensured accurate DataFrame handling.
  • Improved the methodology for quantile binning to handle tie values effectively.

Pending Tasks

  • Further validation of the binning process to ensure consistency across larger datasets.
  • Explore additional optimization techniques for Dask DataFrame operations.