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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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commit f23f22d71c
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Task/Text-processing-1/J/text-processing-1-1.j Normal file
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load 'files'
parseLine=: 10&({. ,&< (_99&".;._1)@:}.) NB. custom parser
summarize=: # , +/ , +/ % # NB. count,sum,mean
filter=: #~ 0&< NB. keep valid measurements
'Dates dat'=: |: parseLine;._2 CR -.~ fread jpath '~temp/readings.txt'
Vals=: (+: i.24){"1 dat
Flags=: (>: +: i.24){"1 dat
DailySummary=: Vals summarize@filter"1 Flags
RunLengths=: ([: #(;.1) 0 , }. *. }:) , 0 >: Flags
]MaxRun=: >./ RunLengths
589
]StartDates=: Dates {~ (>:@I.@e.&MaxRun (24 <.@%~ +/)@{. ]) RunLengths
1993-03-05