Why is the more complicated form faster? Thanks,
-- Raul On Thu, Apr 28, 2022 at 6:20 PM Henry Rich <[email protected]> wrote: > > Gagging the critic, eh? It's just trying to help: > > r =. i. 3 4000 > l =. i. 3 2 > 7!:2 'r =. l 1 2}"1 r' > 165696 > 7!:2 'r =. l (<a:;1 2)} r' > 1856 > > Henry Rich > > On 4/28/2022 6:08 PM, 'Michael Day' via Beta wrote: > > I've just encountered this rather surprising instance of the error > > message. > > > > (i.3 2) 1 2}"1 i.3 4 > > (004) m}"n should be executed without " using leading axes of a: in m > > 0 0 1 3 > > 4 2 3 7 > > 8 4 5 11 > > > > However, this works without any grumbling: > > 1 2{"1 i.3 4 > > 1 2 > > 5 6 > > 9 10 > > > > This is an example I've cooked up for this report; the actual line of > > code > > is slightly more interesting: I'm trying to replace some columns in an > > matrix with new values. Actually it's Fannkuch -flipping the first few > > columns! I was looking at my code after yesterday's post re fannkuch > > redux. > > > > I've killed the message now, with 9!:55 ] 1e6 ; 4 > > > > JVERSION > > Engine: j904/j64avx2/windows > > Beta-b: commercial/2022-04-12T18:59:13 > > Library: 9.04.01 > > Qt IDE: 2.0.3/6.2.4(6.2.4) > > Platform: Win 64 > > Installer: J904 install > > InstallPath: c:/d/j904-beta > > Contact: www.jsoftware.com > > > > Thanks, > > > > Mike > > > > > -- > This email has been checked for viruses by AVG. > https://www.avg.com > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
