Re: [xsl] Increasing sequence ?

["Dimitre Novatchev dnovatchev@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Leo,

On Fri, Mar 27, 2015 at 2:36 AM, Leo Studer leo.studer@xxxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> Dimitre
>
> thanks, this is amazing. With Saxon EE in Oxygen 16.1 I get stack overflow
> with 10000 ;-).
> Can you compare the time with this solution?
> declare namespace my = "my:my";
> declare function my:increasing2($seq as xs:double*)as xs:boolean
> {every $v in 1 to (count($seq)-1) satisfies ($seq[$v] lt $seq[$v+1])};
> let $v:=(1 to 1000000) return (my:increasing2($v))


With BaseX the best time was 147ms. This is 70% of the time of the
recursive function (207ms).

Cheers,
Dimitre

>
> Cheers
> Leo
>
> On 27.03.2015, at 05:24, Dimitre Novatchev dnovatchev@xxxxxxxxx
> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hi Leo,
>
> I ran this with BaseX 7.8.2:
>
> declare namespace my = "my:my";
> declare function my:increasing($seq as xs:double*) as xs:boolean
> {empty($seq[2])
> or
>  $seq[1] lt $seq[2]  and  my:increasing(subsequence($seq, 2))
> };
> let $v:=(1 to 10000)
>  return my:increasing($v)
>
>
> And here is the result (do note this below: - marking as ***tail
> call***: my:increasing(fn:subsequence($seq_0, 2))  )
>
> Total Time: 3.74ms (for 100 000 - long sequence the time was 17.77ms,
> for 1 000 000 - long sequence the time was 207.56ms)
>
>
> XSL-List info and archive
> EasyUnsubscribe (by email)



-- 
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.