[Jprogramming] A little question

[Ricardo Forno]

I already solved the problem. Anyhow, I'm not aware of tables/dsv addon nor 
the Package Manager. Will you be so kind to explain these subjects to me?
----- Original Message ----- 
From: "Ric Sherlock" <tikkanz at gmail.com>
To: "Programming JForum" <programming at jsoftware.com>
Sent: Monday, December 23, 2013 8:57 PM
Subject: Re: [Jprogramming] A little question


> If you are trying to numerize any items in a boxed table that can be
> numerized (rather than understand why your verb isn't working) then the
> makenum verb from the tables/dsv addon may be useful:
> Install 'tables/dsv' addon using package manager (if not already
> installed). Then:
>
> require 'tables/dsv'
> datatype each makenum_pdsv_ 'ALPHA';'266239';'1'
>
> ┌───────┬───────┬───────┐
>
> │literal│integer│boolean│
>
> └───────┴───────┴───────┘
>
>
>
>
> On Tue, Dec 24, 2013 at 9:33 AM, Devon McCormick <devonmcc at gmail.com> 
> wrote:
>
>> You have two arguments on the left but three on the right: that's why 
>> it's
>> a length error.  As Henry mentioned, something like "(<1 2) numerize each
>> t" effectively fixes this by making the left argument a scalar, which can
>> be applied to each element on the right (under disclose).
>>
>>
>> On Mon, Dec 23, 2013 at 3:26 PM, Henry Rich <HenryHRich at nc.rr.com> wrote:
>>
>> > Try
>> >   1 2&numerize each t
>> > or
>> >   (<1 2) numerize each t
>> >
>> > Henry Rich
>> >
>> >
>> > On 12/23/2013 11:07 AM, Ricardo Forno wrote:
>> >
>> >> Thanks. But it now fails with length error when calling numerize with 
>> >> a
>> >> vector left argument:
>> >>
>> >> numerize =: 13 : '(".&.>x{y)x}y'
>> >> .............................................
>> >> z =: t =. cutopen each ,&' ' each t
>> >> t =. 1 2 numerize each t
>> >> where z is something like:
>> >> ┌────────────────┬───────────────┬───────────────┐
>> >> │┌─────┬──────┬─┐│┌────┬──────┬─┐│┌──────┬────┬─┐│
>> >> ││ALPHA│266239│1│││BETA│270271│1│││BROKEN│9288│2││
>> >> │└─────┴──────┴─┘│└────┴──────┴─┘│└──────┴────┴─┘│
>> >> └────────────────┴───────────────┴───────────────┘
>> >> |length error: readpars
>> >> |   t=.1 2     numerize each t
>> >>
>> >> ----- Original Message ----- From: "Devon McCormick" <
>> devonmcc at gmail.com>
>> >> To: "J-programming forum" <programming at jsoftware.com>
>> >> Sent: Monday, December 23, 2013 12:11 AM
>> >> Subject: Re: [Jprogramming] A little question
>> >>
>> >>
>> >>  If you break down what's happening inside the function with your
>> example:
>> >>>   1 2{arg
>> >>> +------+-+
>> >>> |266239|1|
>> >>> +------+-+
>> >>>   >1 2{arg
>> >>> 266239
>> >>> 1
>> >>>   ".>1 2{arg
>> >>> 266239 1
>> >>>
>> >>> So this vector gets boxed and put into both places.  If you allow for
>> >>> multiple elements in "x", you might do something like this:
>> >>>
>> >>>   (".&.>1 2{arg) (1 2)}arg
>> >>> +-----+------+-++
>> >>> |ALPHA|266239|1||
>> >>> +-----+------+-++
>> >>>
>> >>> So,
>> >>>
>> >>>   numerize =: 13 : '(".&.>x{y)(x)}y'
>> >>>
>> >>>   ([: {. 0 $ ]) &.> 1 2 numerize arg  NB. Show 0 for numeric, ' ' for
>> >>> character arguments.
>> >>> +-+-+-+-+
>> >>> | |0|0| |
>> >>> +-+-+-+-+
>> >>>
>> >>>
>> >>> On Sun, Dec 22, 2013 at 3:22 PM, Ricardo Forno
>> >>> <ricardoforno at tutopia.com>wrote:
>> >>>
>> >>>  I have this little function:
>> >>>> numerize =: 13 : '(<".x{>y)x}y'
>> >>>> It makes numeric the contents of the xth box of the y argument. For
>> >>>> example, let b:
>> >>>> b
>> >>>> ┌─────┬──────┬─┐
>> >>>> │ALPHA│266239│1│
>> >>>> └─────┴──────┴─┘
>> >>>>
>> >>>> 1 numerize b makes numeric the middle box.
>> >>>> Why does it not work with the last two elements of b, namely:
>> >>>> 1 2 numerize b
>> >>>> but instead inserts a 2.element vector in each of the boxes 1 and 2?
>> >>>> Thanks.
>> >>>>
>> >>>> ----------------------------------------------------------------------
>> >>>> For information about J forums see
>> http://www.jsoftware.com/forums.htm
>> >>>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>> Devon McCormick, CFA
>> >>> ----------------------------------------------------------------------
>> >>> For information about J forums see 
>> >>> http://www.jsoftware.com/forums.htm
>> >>>
>> >>
>> >> ----------------------------------------------------------------------
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>> >>
>> > ----------------------------------------------------------------------
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>> >
>>
>>
>>
>> --
>> Devon McCormick, CFA
>> ----------------------------------------------------------------------
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>>
> ----------------------------------------------------------------------
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