Thank you! I have been bit by that error so many times. And it usually
takes me forever to find it.

On Sat, Feb 25, 2012 at 7:33 AM, Henry Rich <henryhr...@nc.rr.com> wrote:

> Thanks.  Your problem is the old 'x ; boxed y' error.
>
>    (0;sj;<mj2) ;: y
> +---+--+-+--+---+-+-+-+-+-+---+-+---+-+
> |sum|=.|(|i.|3 4|)|+|/|.|*|0j4|+|pru|4|
> +---+--+-+--+---+-+-+-+-+-+---+-+---+-+
>
>
> Henry Rich
>
> On 2/24/2012 11:58 PM, Don Guinn wrote:
> > d332 for ;: in J Vocabulary. I didn't want to put all that in the mail,
> but
> > here it is.
> >
> > mj=: 256$0                     NB. X other
> > mj=: 1 (9,a.i.' ')}mj          NB. S space and tab
> > mj=: 2 ((a.i.'Aa')+/i.26)}mj   NB. A A-Z a-z excluding N B
> > mj=: 3 (a.i.'N')}mj            NB. N the letter N
> > mj=: 4 (a.i.'B')}mj            NB. B the letter B
> > mj=: 5 (a.i.'0123456789_')}mj  NB. 9 digits and _
> > mj=: 6 (a.i.'.')}mj            NB. D .
> > mj=: 7 (a.i.':')}mj            NB. C :
> > mj=: 8 (a.i.'''')}mj           NB. Q quote
> >
> > sj=: _2]\"1 }.".;._2 (0 : 0)
> > ' X    S    A    N    B    9    D    C    Q ']0
> >   1 1  0 0  2 1  3 1  2 1  6 1  1 1  1 1  7 1  NB. 0 space
> >   1 2  0 3  2 2  3 2  2 2  6 2  1 0  1 0  7 2  NB. 1 other
> >   1 2  0 3  2 0  2 0  2 0  2 0  1 0  1 0  7 2  NB. 2 alp/num
> >   1 2  0 3  2 0  2 0  4 0  2 0  1 0  1 0  7 2  NB. 3 N
> >   1 2  0 3  2 0  2 0  2 0  2 0  5 0  1 0  7 2  NB. 4 NB
> >   9 0  9 0  9 0  9 0  9 0  9 0  1 0  1 0  9 0  NB. 5 NB.
> >   1 4  0 5  6 0  6 0  6 0  6 0  6 0  1 0  7 4  NB. 6 num
> >   7 0  7 0  7 0  7 0  7 0  7 0  7 0  7 0  8 0  NB. 7 '
> >   1 2  0 3  2 2  3 2  2 2  6 2  1 2  1 2  7 0  NB. 8 ''
> >   9 0  9 0  9 0  9 0  9 0  9 0  9 0  9 0  9 0  NB. 9 comment
> > )
> >
> >     x=: 0;sj;mj
> >     y=: 'sum=. (i.3 4)+/ .*0j4+pru 4'
> >
> >     x ;: y
> >
> > On Fri, Feb 24, 2012 at 9:28 PM, Henry Rich<henryhr...@nc.rr.com>
>  wrote:
> >
> >> Where is this help, where sj and mj are defined?
> >>
> >> Henry Rich
> >>
> >> On 2/24/2012 7:25 PM, Don Guinn wrote:
> >>> I've lost track of the number of times I have tried to make dyadic ;:
> >> work.
> >>> I read it, understand it (I think), but I can't get it to work. The
> >> general
> >>> description has m, the input mapping as a list of boxes, each box
> >>> containing the items to be mapped to the same number. So, in an attempt
> >> to
> >>> figure out what is going on I converted the example in help to that
> form
> >>> and get an error.
> >>>
> >>> Given sj, mj and y as defined in help:
> >>>
> >>>      (0;sj;mj) ;: y
> >>> +---+--+-+--+---+-+-+-+-+-+---+-+---+-+
> >>> |sum|=.|(|i.|3 4|)|+|/|.|*|0j4|+|pru|4|
> >>> +---+--+-+--+---+-+-+-+-+-+---+-+---+-+
> >>>
> >>> So far, so good. Convert mj to the boxed form (display shortened to fit
> >>> e-mail):
> >>>
> >>>      mj2=:(/:~.mj){mj</.a.
> >>>      ,.50{.&.>mj2
> >>> +--------------------------------------------------+
> >>> |             ┌┬┐├┼┤└┴┘│─     !"#$%&()*+,-/;<=>?@|
> >>> +--------------------------------------------------+
> >>> |                                                  |
> >>> +--------------------------------------------------+
> >>> |ACDEFGHIJKLMOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz|
> >>> +--------------------------------------------------+
> >>> |N                                                 |
> >>> +--------------------------------------------------+
> >>> |B                                                 |
> >>> +--------------------------------------------------+
> >>> |0123456789_                                       |
> >>> +--------------------------------------------------+
> >>> |.                                                 |
> >>> +--------------------------------------------------+
> >>> |:                                                 |
> >>> +--------------------------------------------------+
> >>> |'                                                 |
> >>> +--------------------------------------------------+
> >>>
> >>> Test it to see if it is ok.
> >>>
> >>>      my=. (y i.~;m) { (#m),~(#&>m)#i.#m   NB. From help
> >>>      y,:,":"0 my
> >>> sum=. (i.3 4)+/ .*0j4+pru 4
> >>> 222061026515000160525022215
> >>>
> >>> Looks good, but
> >>>
> >>>      (0;sj;mj2) ;: y
> >>> |length error
> >>> |   (0;sj;mj2)    ;:y
> >>>
> >>> The problem is not with y, but something about mj2.
> >>>
> >>>      (0;sj;mj2)&;:
> >>> |length error
> >>> |       (0;sj;mj2)&;:
> >>>
> >>> As I understand the description in help, this should work.
> >>>
> >>> So, what am I missing?
> >>> ----------------------------------------------------------------------
> >>> 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