Richard, Thanks...that really helps! I will give it a try.
Warren On 7/29/09, Richard Gaskin <ambassa...@fourthworld.com> wrote: > > Warren Kuhl wrote: > > I have a variable that has approx 100,000 records (loaded from a text >> file). >> I need to read through each record and extract items from each record. >> >> I am currently using: >> Repeat with x = 1 to tRecordCount >> Put item 2 of line x of tData into tItem2 >> Put item 6 of line x of tData into tItem6 >> ...process data >> End Repeat >> >> I find this very slow to process. Is there a fast way to process through >> the >> data? >> > > The "repeat with..." construct will be slow when using the iteration > variable to access the data, because each time through the loop it needs to > count from 1 to x to find the line in question. > > You should see at least an order of magnitude performance gain using > "repeat for each...", e.g.: > > repeat for each line tLine in tData > put item 2 of tLine into tItem2 > put item 6 of tLine into tItem6 > ...process data > end Repeat > > With "repeat for each", the engine parses the data as it goes, putting each > line as it finds it into tLine, and keep track of where it is so the next > time through the loop it just picks up where it left off. Much, much faster. > > -- > Richard Gaskin > Fourth World > Revolution training and consulting: http://www.fourthworld.com > Webzine for Rev developers: http://www.revjournal.com > _______________________________________________ > use-revolution mailing list > use-revolution@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution > _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution