Subject: Re: [xsl] Duplicates in a sequence ? From: "Dimitre Novatchev dnovatchev@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Wed, 25 Mar 2015 17:01:48 -0000 |
And if you just need the boolean (true()/false()) indicating whether a sequence has duplicate values -- not needing the values themselves -- then use the following, slightly adjusted and more efficient expression: exists($vSeq[index-of($vSeq,.)[2]][1] ) On Wed, Mar 25, 2015 at 9:53 AM, Leo Studer leo.studer@xxxxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > Really nice, thanks ! > > >> On 25.03.2015, at 15:05, Dimitre Novatchev dnovatchev@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> See this: >> >> http://stackoverflow.com/questions/133092/how-do-you-identify-duplicate-values-in-a-numerical-sequence-using-xpath-2-0 >> >> It produces all values in the sequence, that occur in it more than once: >> >> $vSeq[index-of($vSeq,.)[2]] >> >> >> >> On Wed, Mar 25, 2015 at 3:58 AM, Leo Studer leo.studer@xxxxxxxxxxx >> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: >>> Hello >>> >>> I have a sequence and want to know whether there are duplicate values in it. >>> >>> I came out with the following and think there must be an easy solution. Any suggestion? >>> >>> let $sequence :=(1,12,14,17,22,12) return (count(distinct-values($sequence)) ne count($sequence)) >>> >>> >>> Thanks in advance >>> Leo >>> > -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- To avoid situations in which you might make mistakes may be the biggest mistake of all ------------------------------------ Quality means doing it right when no one is looking. ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play ------------------------------------- To achieve the impossible dream, try going to sleep. ------------------------------------- Facts do not cease to exist because they are ignored. ------------------------------------- Typing monkeys will write all Shakespeare's works in 200yrs.Will they write all patents, too? :) ------------------------------------- I finally figured out the only reason to be alive is to enjoy it.
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