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).
159 lines
2.6 KiB
Plaintext
159 lines
2.6 KiB
Plaintext
Date,Dividends
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2004-09-27,0.014
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2004-10-25,0.02
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2004-11-26,0.024
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2004-12-23,0.022
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2005-01-25,0.022
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2006-12-26,0.041
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2007-01-25,0.035
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2007-02-26,0.039
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2007-03-26,0.036
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2007-04-25,0.04
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2007-05-25,0.04
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2007-06-25,0.039
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2007-07-25,0.042
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2007-08-27,0.041
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2007-09-25,0.042
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2007-10-25,0.042
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2007-11-26,0.039
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2007-12-26,0.087
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2008-01-25,0.033
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2008-02-25,0.04
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2008-03-25,0.04
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2008-04-25,0.037
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2008-05-27,0.036
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2008-06-25,0.041
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2008-07-25,0.05
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2008-08-25,0.04
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2008-09-25,0.046
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2008-10-27,0.038
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2008-11-25,0.049
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2008-12-26,0.052
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2009-01-26,0.036
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2009-02-25,0.041
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2009-03-25,0.036
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2009-04-27,0.037
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2009-05-26,0.034
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2009-06-25,0.039
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2009-07-27,0.034
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2009-08-25,0.031
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2009-09-25,0.031
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2009-10-26,0.028
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2009-11-25,0.028
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2009-12-28,0.033
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2010-01-25,0.02
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2010-02-25,0.029
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2010-03-25,0.024
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2010-05-25,0.025
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2010-06-25,0.025
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2010-07-26,0.025
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2010-08-25,0.022
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2010-09-27,0.023
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2010-10-25,0.019
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2010-11-26,0.023
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2010-12-27,0.047
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2011-01-25,0.016
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2011-02-25,0.02
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2011-03-25,0.019
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2011-04-25,0.018
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2011-05-25,0.021
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2011-06-27,0.02
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2011-07-25,0.018
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2011-08-25,0.021
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2011-09-26,0.018
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2011-10-25,0.019
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2011-11-28,0.02
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2011-12-27,0.081
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2012-01-25,0.015
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2012-02-27,0.02
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2012-03-26,0.017
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2012-04-25,0.02
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2012-05-25,0.019
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2012-06-25,0.018
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2012-07-25,0.019
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2012-08-27,0.018
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2012-09-25,0.018
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2012-10-25,0.017
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2012-11-26,0.017
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2012-12-26,0.039
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2013-01-25,0.013
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2013-02-25,0.014
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2013-03-25,0.014
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2013-04-25,0.016
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2013-05-28,0.014
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2013-06-25,0.015
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2013-07-25,0.012
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2013-08-26,0.013
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2013-09-25,0.014
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2013-10-25,0.013
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2013-11-25,0.013
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2013-12-26,0.037
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2014-01-27,0.01
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2014-02-25,0.014
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2014-03-25,0.013
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2014-04-25,0.014
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2014-05-27,0.013
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2014-06-25,0.014
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2014-07-25,0.013
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2014-08-25,0.012
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2014-09-25,0.014
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2014-10-27,0.012
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2014-11-25,0.012
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2014-12-26,0.024
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2015-01-26,0.009
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2015-01-28,0.009
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2015-02-25,0.014
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2015-03-25,0.013
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2015-04-27,0.013
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2015-05-26,0.011
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2015-06-25,0.013
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2015-07-27,0.012
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2015-08-25,0.012
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2015-09-25,0.012
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2015-10-26,0.011
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2015-11-25,0.013
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2015-12-28,0.023
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2016-01-25,0.009
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2016-02-25,0.014
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2016-03-28,0.013
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2016-04-25,0.012
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2016-05-25,0.013
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2016-06-27,0.013
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2016-07-25,0.012
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2016-08-25,0.013
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2016-09-26,0.012
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2016-10-25,0.013
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2016-11-25,0.012
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2017-01-25,0.01
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2017-02-27,0.013
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2017-03-27,0.013
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2017-04-25,0.014
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2017-05-25,0.013
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2017-06-26,0.014
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2017-07-25,0.013
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2017-08-25,0.014
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2017-09-25,0.013
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2017-10-25,0.015
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2017-11-27,0.015
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2017-12-26,0.022
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2018-01-25,0.012
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2018-02-26,0.015
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2018-03-26,0.015
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2018-04-25,0.017
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2018-05-25,0.016
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2018-06-25,0.016
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2018-07-25,0.018
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2018-08-27,0.019
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2018-09-25,0.019
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2018-10-25,0.019
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2018-11-26,0.019
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2018-12-26,0.026
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2019-01-25,0.016
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2019-02-25,0.019
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2019-03-25,0.019
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2019-04-25,0.023
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2019-05-28,0.02
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2019-06-25,0.021
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2019-07-25,0.02
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2019-08-26,0.02
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