Text processing/1: Difference between revisions

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 <lang j>
-require 'files'  NB. for fread/freadblock/fapplylines
+require 'files'              NB. for fread/freadblock/fapplylines
 NB. Utility verbs
 mean=: +/ % #
-summarize=: # , +/ , mean  NB. count , sum , mean
+summarize=: # , +/ , mean    NB. count , sum , mean
-filter=: #~ 0&<  NB. keep left arg where 0 < right arg
+filter=: #~ 0&<              NB. keep left arg where 0 < right arg
-NB. Longest run(s) of successive invalid measurements
+NB. Find longest run(s) of successive invalid measurements and return
+NB. length and date of last measurement(s) in run(s)
+NB. Takes matrix of flags as right argument
 findLongestRuns=: 3 : 0
   badflags=. , 0 >: y
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 )
 </lang>
 === Process whole file at once ===