lists are already created. How much time did you get with and without list
creation. Reason I am asking is I do not know if those timings are in
milliseconds.

On Tue, Dec 6, 2016 at 4:29 PM, Ric Sherlock <[email protected]> wrote:

>    list1=: (i. 10e6)
>
>    list2=: (1e6 + i. 9e6)
>
>    10 (6!:2) 'list2 e. list1'
>
> 0.0412252
>
>    10 (6!:2) '(1e6 + i. 9e6) e. (i. 10e6)'
>
> 0.20568
>
>
> i5-4300U @ 1.90/2.5 GHz
>
> Taking the list creation out of the timing makes a significant difference.
>
>
> On Wed, Dec 7, 2016 at 9:51 AM, Henry Rich <[email protected]> wrote:
>
> >    6!:2 '(i. 10000000) i. (1000000 + i. 9000000)'
> > 0.121106
> >
> > this is i3-3120M at 2.5 GHz (2012, Ivy Bridge architecture).
> >
> > Henry Rich
> >
> >
> > On 12/6/2016 3:44 PM, 'Pascal Jasmin' via Programming wrote:
> >
> >> the in function in q is e. in J.
> >>
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: Björn Helgason <[email protected]>
> >> To: Programming forum <[email protected]>
> >> Sent: Tuesday, December 6, 2016 3:41 PM
> >> Subject: Re: [Jprogramming] in function which beats the benchmark
> >>
> >> in =. [: I. E.
> >>
> >>         1 3 in 4 2 1 3 4 6 1  3
> >> 2 6
> >>
> >>
> >>
> >> On 6 Dec 2016 09:46, "Abi" <[email protected]> wrote:
> >>
> >> Hi,
> >> I am new to J. Can someone implement the *in* function.
> >> I have tried various ways but cannot get to beat the benchmark of ~130
> ms.
> >>
> >> list1: 0 til 10MM
> >> list2 : 1M till 10MM
> >>
> >> list2 *in* list1
> >>
> >> The line above shows the in operator.
> >>
> >> Thanks.
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
> >>
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
> >>
> >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to