Developed Histograms for Grouped Data in Pandas

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📅 2023-04-19 — Session: Developed Histograms for Grouped Data in Pandas

🕒 20:05–20:25
🏷️ Labels: Pandas, Matplotlib, Data Visualization, Python, Keyerror
📂 Project: Dev
⭐ Priority: MEDIUM

Session Goal: The session aimed to develop and refine a method for visualizing grouped data using histograms in Python, specifically leveraging pandas and Matplotlib libraries.

Key Activities:

  • Utilized pandas’ groupby() method to create histograms for the score column, grouped by dummy columns in a DataFrame.
  • Iterated through specified columns in a DataFrame to group data and plotted histograms for each group, demonstrating data distribution visualization.
  • Generated a grid of subplots using Matplotlib to facilitate the visualization of grouped data.
  • Addressed a KeyError in a Python loop by filtering out non-string values and renaming loop variables to avoid conflicts.
  • Updated the histogram plotting code to resolve previous issues and ensure correct variable management.

Achievements:

  • Successfully plotted histograms for grouped data using updated Python code, resolving KeyErrors and improving data visualization techniques.

Pending Tasks:

  • Further exploration of data visualization techniques to enhance clarity and insight extraction from grouped data.

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