[Compatibility Issue] NumPy API removals: np.trapz + np.bool

[xyf5432]

Two NumPy APIs used in this repo have been removed in recent NumPy versions and will cause AttributeError at runtime.

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1. np.trapz — removed in NumPy 2.4.0

Affected files:

• ana/ckn.py:94, :111, :201
• ana/trapz.py:21

Current:

# ana/ckn.py:94
cai2[i] = np.trapz(ir2[:i+1], en[:i+1])

# ana/ckn.py:111
s2i[i] = np.trapz(s2[:i+1], en[:i+1])

# ana/ckn.py:201
s2integral += np.trapz(fs2[:,1], fs2[:,0])

# ana/trapz.py:21
area_approx = np.trapz(y, x)

Fix: np.trapz → np.trapezoid (same signature)

np.trapezoid(y, x)

trapz was deprecated in NumPy 2.0 (2023-08) and removed in NumPy 2.4.0 (2025-12). Refs: gpytorch#2695, NeuroKit#1155.

For NumPy < 2.0 backward compatibility:

try:
    from numpy import trapezoid as _trapz_impl
except ImportError:
    from numpy import trapz as _trapz_impl

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2. np.bool — removed in NumPy 1.24

Affected files:

• ana/seq.py:864
• ana/cfh.py:297

Current:

# ana/seq.py:864
wk = np.zeros((len(aseq), 16), dtype=np.bool)

# ana/cfh.py:297
a = np.zeros(len(paths), dtype=np.bool)

Fix: np.bool → bool (recommended) or np.bool_

dtype=bool

np.bool was deprecated in NumPy 1.20 and removed in NumPy 1.24 (2022-12). Refs: ultralytics#22930.

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Summary

API	NumPy removed	Affected files	Fix
np.trapz	2.4.0	ana/ckn.py ×3, ana/trapz.py ×1	np.trapezoid
np.bool	1.24	ana/seq.py:864, ana/cfh.py:297	bool