Rob, That's very thorough and appears to suggest that no dramatic improvements can be made.
Raul, I can't imagine how that got past me. Great comment. Thanks, again, On Thu, Jun 1, 2017 at 10:57 AM, Raul Miller <[email protected]> wrote: > Why do you want the "1 at all? > > trim=: ,"_2@(tess &(cp;._3)) > > produces the same result (and has the same rank). > > Thanks, > > -- > Raul > > > > On Thu, Jun 1, 2017 at 8:32 AM, Brian Schott <[email protected]> > wrote: > > cp =: (<1 1)&{ NB. center pixel of 3x3 > > tess =: 2 2$3 NB. tesselate > > trim =: >@(tess &(cp;._3))@:(<"1) > > trim =: ,"_2@(tess &(cp;._3))@:(]"1) > > > > I have found the trim's above both accomplish the desired result. My > > question especially is, how can the rank "1 in the latter trim be > > incorporated without the trailing @(). Any other suggestions to achieve > > speed improvements would be appreciated, too. > > > > I am experimenting with the following phrase, for example, and when > > applying rank directly, without the @:() I get length error. > > > > trim i. 7 10 3 NB. a fake rgb image argument > > > > Thank you, > > > > -- > > (B=) > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- (B=) <-----my sig Brian Schott ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
