When load_usgs returns an empty DataFrame it has a RangeIndex, causing
resample("1D") to throw TypeError. Guard with an isinstance check and
fall back to a zero series so the rest of the pipeline continues.
Also aligns expected usgs-dir path with what script 06 wrote.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Pre-registered predictions written BEFORE any OOS analysis data is loaded
(UTC 2026-04-22T00:44:30). OOS window: 2020-01-01 to 2025-04-29,
constrained by NMDB reliable end date. 30 NMDB stations pass coverage
threshold in this window.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Scripts 01-08 implement the complete cosmic-ray/earthquake correlation
analysis from data ingestion through out-of-sample validation and
combined timeseries sinusoid fitting.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
