matplotlib-jp-diagram

This skill provides a standard way to generate matplotlib diagrams with Japanese font support and consistent output naming.

Guidelines

1. Mandatory Font Configuration: Always include the following line before plotting:

   import matplotlib.pyplot as plt
   plt.rcParams['font.family'] = 'Noto Sans JP'
   

2. File Naming Convention:

   • The Python script should be named with a suffix like -diagram.py (e.g., performance-diagram.py).
   • The output image must be a PNG file with the exact same base name (e.g., performance-diagram.png).

3. Output Logic: Ensure the script automatically saves the diagram to the correct PNG path when executed.

   import os
   output_path = os.path.splitext(os.path.basename(__file__))[0] + ".png"
   plt.savefig(output_path)
   

4. Appropriate Diagrams:

   • Choose the chart type (line, bar, scatter, etc.) that best represents the data.
   • Include appropriate labels, titles, and legends in Japanese where applicable.

Workflow

1. Identify the data to be visualized.
2. Determine the script name (e.g., stats-diagram.py).
3. Generate the script using the template logic.
4. If requested, execute the script to verify output.

Reference Template

See references/template.py for a complete example structure.