File size: 3,535 Bytes
fc54009 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | #!/usr/bin/env python3
# -*- coding: utf-8 -*-
import argparse
from pathlib import Path
from collections import Counter, defaultdict
import h5py
ROOT = Path(__file__).resolve().parents[1]
def collect_h5_files(path):
path = Path(path)
if path.is_file():
return [path]
return sorted(list(path.glob("*.h5")) + list(path.glob("*.hdf5")))
def scan_one_hdf5(h5_path):
combo_counter = Counter()
combo_examples = defaultdict(list)
with h5py.File(h5_path, "r") as h5:
for year_id in h5.keys():
year_grp = h5[year_id]
if not isinstance(year_grp, h5py.Group):
continue
for day_id in year_grp.keys():
day_grp = year_grp[day_id]
if not isinstance(day_grp, h5py.Group):
continue
if "stations" not in day_grp:
continue
stations_grp = day_grp["stations"]
for station_id in stations_grp.keys():
station_grp = stations_grp[station_id]
if "waveform" not in station_grp:
continue
waveform_grp = station_grp["waveform"]
channels = sorted([
ch for ch in waveform_grp.keys()
if isinstance(waveform_grp[ch], h5py.Group)
])
if not channels:
continue
combo = tuple(channels)
combo_counter[combo] += 1
if len(combo_examples[combo]) < 5:
combo_examples[combo].append(
f"{h5_path.name} | {year_id} | {day_id} | {station_id}"
)
return combo_counter, combo_examples
def main():
parser = argparse.ArgumentParser(
description="Count channel combinations in HDF5 waveform files."
)
parser.add_argument(
"--input",
default=str(ROOT / "data/hdf5/continuous_waveform_usa_20190701.h5"),
help="HDF5 file or directory containing .h5/.hdf5 files.",
)
parser.add_argument(
"--show_examples",
action="store_true",
help="Show up to 5 examples for each channel combination.",
)
args = parser.parse_args()
h5_files = collect_h5_files(args.input)
if not h5_files:
raise FileNotFoundError(f"No HDF5 files found: {args.input}")
total_counter = Counter()
total_examples = defaultdict(list)
for h5_file in h5_files:
print(f"[INFO] Scanning {h5_file}")
counter, examples = scan_one_hdf5(h5_file)
total_counter.update(counter)
for combo, exs in examples.items():
rest = max(0, 5 - len(total_examples[combo]))
total_examples[combo].extend(exs[:rest])
print("\n========== Channel combination summary ==========")
print(f"Total HDF5 files scanned: {len(h5_files)}")
print(f"Total unique channel combinations: {len(total_counter)}")
print(f"Total station-day records: {sum(total_counter.values())}")
print("\nCount | Channel number | Channels")
print("-" * 80)
for combo, count in total_counter.most_common():
combo_str = ",".join(combo)
print(f"{count:6d} | {len(combo):14d} | {combo_str}")
if args.show_examples:
for ex in total_examples[combo]:
print(f" example: {ex}")
print("\n[OK] Done.")
if __name__ == "__main__":
main()
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