Greg Pomerantz
3c5bee96ce
Some dump files carry a trailing 'ctime' column: an older pipeline appended a FULL re-download of the symbol per download (up to ~28 vintages per date, 2019-2022). The consumer keeps the last row per date, so it silently used stale (~2021) vintages where Yahoo later revised values. scripts/clean_multivintage.py keeps, per date, the rows from the newest ctime (event files keep distinct same-day amounts; history/split keep the single newest row), drops the ctime column, sorts by date. Applied to the data root and overrides/frozen (which carried the same artifact): 1,065 files, 2,202,712 stale rows dropped. Also: stripped 3 UTF-8 BOMs (teg/lo/krft), refreshed the event backup with the cleaned files, and re-ran the double-listing scan: category C (83 symbols, 18,636 repeated within-file rows) is fully explained by the multi-vintage artifact and is now gone; A (6,589 pairs, corrected) and B (12,366 pairs, open review list) are unchanged. Whole-set structural QC after cleaning: 0 duplicate dates, 3 syms/15 rows of OHLC invariant violations, 15 syms/2,897 rows of non-positive prices (mostly long-delisted tickers), 8 unsorted files (reader sorts).
98 lines
1.6 KiB
Plaintext
98 lines
1.6 KiB
Plaintext
Date,Dividends
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2013-09-11,0.161
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2013-10-10,0.161
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2013-11-13,0.161
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2013-12-11,0.161
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2014-01-13,0.161
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2014-02-12,0.161
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2014-03-12,0.161
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2014-04-11,0.161
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2014-05-13,0.171
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2014-06-11,0.171
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2014-07-11,0.171
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2014-08-13,0.181
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2014-09-11,0.181
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2014-10-10,0.181
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2014-11-12,0.181
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2014-12-11,0.181
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2015-01-13,0.181
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2015-02-11,0.181
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2015-03-11,0.181
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2015-04-13,0.181
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2015-05-13,0.181
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2015-06-11,0.181
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2015-07-13,0.181
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2015-08-12,0.181
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2015-09-11,0.181
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2015-10-13,0.181
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2015-11-10,0.181
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2015-12-11,0.181
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2016-01-13,0.181
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2016-02-10,0.181
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2016-03-11,0.181
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2016-04-13,0.181
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2016-05-11,0.181
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2016-06-13,0.181
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2016-07-13,0.181
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2016-08-11,0.181
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2016-09-13,0.181
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2016-10-12,0.181
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2016-11-10,0.181
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2016-12-13,0.181
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2017-01-11,0.181
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2017-02-13,0.181
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2017-03-13,0.181
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2017-04-11,0.181
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2017-05-11,0.181
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2017-06-13,0.181
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2017-07-12,0.181
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2017-08-11,0.181
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2017-09-14,0.181
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2017-10-12,0.181
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2017-11-14,0.181
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2017-12-14,0.181
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2018-01-11,0.181
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2018-02-14,0.181
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2018-03-14,0.181
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2018-04-12,0.181
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2018-05-14,0.181
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2018-06-14,0.181
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2018-07-12,0.181
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2018-08-14,0.181
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2018-09-13,0.181
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2018-10-12,0.181
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2018-11-14,0.181
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2018-12-13,0.181
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2019-01-14,0.181
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2019-02-14,0.181
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2019-03-14,0.181
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2019-04-12,0.181
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2019-05-14,0.181
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2019-06-13,0.181
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2019-07-12,0.181
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2019-08-14,0.181
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2019-09-12,0.181
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2019-10-11,0.181
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2019-11-14,0.181
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2019-12-12,0.181
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2020-01-14,0.181
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2020-02-13,0.181
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2020-03-12,0.181
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2020-04-14,0.181
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2020-05-14,0.181
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2020-06-12,0.181
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2020-07-14,0.181
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2020-08-13,0.181
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2020-09-14,0.181
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2020-10-14,0.181
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2020-11-12,0.181
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2020-12-14,0.181
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2021-01-14,0.181
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2021-02-11,0.181
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2021-03-12,0.181
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2021-04-14,0.181
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2021-05-13,0.181
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2021-06-14,0.181
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2021-07-14,0.181
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2021-08-12,0.181
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