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).
116 lines
1.9 KiB
Plaintext
116 lines
1.9 KiB
Plaintext
Date,Dividends
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2008-03-12,0.113
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2008-04-11,0.113
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2008-05-13,0.113
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2008-06-12,0.113
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2008-07-11,0.113
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2008-08-13,0.113
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2008-09-11,0.113
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2008-10-10,0.113
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2008-11-12,0.113
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2008-12-11,0.113
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2008-12-29,0.113
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2009-02-11,0.113
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2009-03-12,0.083
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2009-04-13,0.083
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2009-05-13,0.083
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2009-06-11,0.06
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2009-07-13,0.06
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2009-08-12,0.06
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2009-09-11,0.06
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2009-10-13,0.06
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2009-11-10,0.06
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2009-12-11,0.054
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2009-12-29,0.054
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2010-02-10,0.054
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2010-03-11,0.054
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2010-04-13,0.054
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2010-05-12,0.054
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2010-06-11,0.064
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2010-07-13,0.064
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2010-08-12,0.064
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2010-09-13,0.066
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2010-10-13,0.066
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2010-11-10,0.066
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2010-12-13,0.066
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2010-12-29,0.066
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2011-02-11,0.066
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2011-03-11,0.066
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2011-04-13,0.066
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2011-05-12,0.066
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2011-06-13,0.066
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2011-07-13,0.066
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2011-08-11,0.066
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2011-09-13,0.066
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2011-10-12,0.066
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2011-11-10,0.066
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2011-12-12,0.066
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2011-12-28,0.066
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2012-02-13,0.066
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2012-03-13,0.066
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2012-04-12,0.066
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2012-05-11,0.066
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2012-06-13,0.069
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2012-07-12,0.069
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2012-08-13,0.069
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2012-09-12,0.069
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2012-10-11,0.069
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2012-11-13,0.069
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2012-12-12,0.069
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2012-12-27,0.097
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2013-02-13,0.069
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2013-03-13,0.069
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2013-04-11,0.069
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2013-05-13,0.069
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2013-06-12,0.069
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2013-07-11,0.066
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2013-08-13,0.066
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2013-09-12,0.066
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2013-10-11,0.066
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2013-11-13,0.066
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2013-12-11,0.066
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2013-12-27,0.141
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2014-02-12,0.066
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2014-03-12,0.061
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2014-04-11,0.061
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2014-05-13,0.061
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2014-06-12,0.061
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2014-07-11,0.061
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2014-08-13,0.061
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2014-09-11,0.061
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2014-10-10,0.058
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2014-11-12,0.058
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2014-12-10,0.058
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2014-12-29,0.258
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2015-02-11,0.058
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2015-03-11,0.058
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2015-04-13,0.058
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2015-05-13,0.058
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2015-06-11,0.058
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2015-07-13,0.058
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2015-08-12,0.058
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2015-09-11,0.058
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2015-10-13,0.051
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2015-11-12,0.051
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2015-12-10,0.051
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2015-12-29,0.073
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2016-02-11,0.051
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2016-03-11,0.051
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2016-04-13,0.051
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2016-05-12,0.051
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2016-06-13,0.051
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2016-07-13,0.051
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2016-08-11,0.051
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2016-09-13,0.051
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2016-10-12,0.051
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2016-11-10,0.051
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2016-12-08,0.051
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2016-12-28,0.117
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2017-02-13,0.051
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2017-03-13,0.051
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2017-04-11,0.051
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2017-05-11,0.051
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2017-06-13,0.051
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2017-06-29,3.8
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2017-07-12,1.171
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