Re: Unique items in list
Re: Unique items in list
- Subject: Re: Unique items in list
- From: John Stewart <email@hidden>
- Date: Thu, 21 Oct 2004 16:51:07 -0400
On 10/21/04 at -0700 Eric Geoffroy said this
>Golly I should be able to handle this simple task but I'm failing.
>
>I have a long list that has a lot of dupes. I needs to be narrowed to
>unique items. I've tried to ways to attack this.
>
>Method A: Works, but I end up with a column of results that I can't
>coerce back into a list.
>
>repeat with x in finals
> set end of finals to x & ", "
>end repeat
>set finals to (do shell script "echo " & (quoted form of (finals as
>string) & " | " & "sort -u"))
>
>
>
>
>Method B: Doesn't work at all.
>
>set finals to {1, 5, 5, 5, 6, 66, 999}
>set juz to {}
>
>repeat with x in finals
> if x is not in juz then set end of juz to x
>end repeat
>contents of ju
Using the List & Record tools osax from Latenight Software -
set finals to {1, 5, 5, 5, 6, 66, 999}
set dummy to {}
return union of finals and dummy with removing duplicates
--> {1, 5, 6, 66, 999}
<http://www.latenightsw.com/freeware/RecordTools/index.html>
You can also accomplish this with vanilla AppleScript. To do so you need to
iterate through the list and test every item against every other item. Since I
haven't time to write and test such a script tonight perhaps someone else will
post a vanilla example.
On a really large list I suspect the osax version might actually be faster than
vanilla but I have no data to support that. This would not usually be the case
due to the overhead involved in calling the osax.
JBS
--
Why isn't the number 11 pronounced onety one? - George Carlin
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