119 autotest for dpcca with chol2d mult

[pipipyau]

No description provided.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (2 files)

• research/multi_scale_fractional_generator.py.ipynb - Updated mfnoise call to generate 5 tracks (parameter change from 1 to 5), removed unused import, formatting changes
• tests/test_dpcca.py - Added new test for DPCCA with chol2d correlation matrix verification

Verification Completed

I verified the following:

1. The mfnoise function's 4th positional parameter is n_tracks (default=1), so changing from 1 track to 5 tracks is valid
2. Both imported functions (generate_fbn from StatTools.generators and chol2d_mult from StatTools.generators.multi_scale_fractional_generator) exist in the codebase
3. The dpcca function returns a 4-element tuple, so using _ to ignore unused return values is correct
4. The new test properly verifies DPCCA's ability to recover correlation matrices imposed via chol2d_mult

The changes are functional and correct.