This caused J to crash. TroubleMaker=. `(<_1;~":0) ATOMIC=. (5!:4)< 'TroubleMaker'
Linda -----Original Message----- From: programming-boun...@jsoftware.com [mailto:programming-boun...@jsoftware.com] On Behalf Of Jose Mario Quintana Sent: Monday, February 27, 2012 2:43 PM To: Programming forum Subject: Re: [Jprogramming] tacit adverb Either the first hint does not work or I misunderstood: ( TroubleMaker=. `(<_1;~":0)) `_1 --T----┐ │`│---┐│ │ ││_1││ │ │L---│ L-+----- (5!:5)<'TroubleMaker' NB. This is the problem.. `_1 ( ATOMIC=. (5!:1)< 'TroubleMaker' ) NB. It seems fine... ---------------------┐ │--T----------------┐│ ││4│--T------------┐││ ││ ││`│--T--------┐│││ ││ ││ ││0│-------┐││││ ││ ││ ││ ││--T--┐│││││ ││ ││ ││ │││0│_1││││││ ││ ││ ││ ││L-+---│││││ ││ ││ ││ │L-------││││ ││ ││ │L-+---------│││ ││ │L-+-------------││ │L-+-----------------│ L--------------------- (5!:5)<'ATOMIC' NB. It is fine. <(<,'4'),<(<,'`'),<(<,'0'),<<(,'0');_1 ( Name=. ATOMIC (5!:0) ) NB. It seems fine `_1 --T----┐ │`│---┐│ │ ││_1││ │ │L---│ L-+----- 5!:5 <'Name' NB. This is the same problem again `_1 ((5!:1)<'Name') -: ((5!:1)<'TroubleMaker') 1 NB. (5!:0) and (5!:1) work fine but (5!:5) does not. *TroubleMaker --T------┐ │*│--T--┐│ │ ││0│_1││ │ │L-+---│ L-+------- *Name --T------┐ │*│--T--┐│ │ ││0│_1││ │ │L-+---│ L-+------- *(`_1) |domain error | *(`_1) |[-15] (<(<,'4'),<(<,'`'),<(<,'0'),<<(,'0');_1) (5!:0) NB. The current workaround... `_1 --T----┐ │`│---┐│ │ ││_1││ │ │L---│ L-+----- *(<(<,'4'),<(<,'`'),<(<,'0'),<<(,'0');_1) (5!:0) NB. ...behaves fine. --T------┐ │*│--T--┐│ │ ││0│_1││ │ │L-+---│ L-+------- ________________________________________ From: programming-boun...@jsoftware.com [programming-boun...@jsoftware.com] on behalf of Raul Miller [rauldmil...@gmail.com] Sent: Monday, February 27, 2012 1:25 PM To: Programming forum Subject: Re: [Jprogramming] tacit adverb 2012/2/26 Jose Mario Quintana <josemarioquint...@2bestsystems.com>: > That conjunction is useful but as an alternative to (`) instead of a replacement otherwise the definition of the also useful (`'') would be longer, for example, ( (`*)(((("_)(,@:{.@:))(` _))(`:6)) ) where (`) is its replacement (although an improved shorter definition might be possible it would still be longer than (`'') ). > > I believe Thomas is correct in his analysis (unless a higher authority states otherwise). I can understand now that I can manually produce a lean linear representation (a lot shorter than the general workaround method) of a trouble-making adverb that I have written because I know what I meant but (5!:5) does not (if you know what I mean). However, I am still somewhat confused: Why the atomic representation (5!:1) and (`:6) or (5!:0) have no difficulties? At any rate, if I recall correctly, it has been stated that (13 :) generates tacit equivalents of explicit verbs based on how they would be executed. I wonder if a similar approach could be used to generate a lean linear representation of a trouble-making adverb. I am sure that 5!:0 has support code for each primitive. Thus, to convert from atomic representation to linear representation name=. atomicRep 5!:0 5!:5 <'name' Or you could build your own lookup table with every primitive represented. -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm [BEST LLC] Bayesian Efficient Strategic Trading LLC The information in this communication and any attachment is confidential and intended solely for the attention and use of the named addressee(s). Any views or opinions presented are solely those of the author and do not necessarily represent those of BEAM Bayesian Efficient Asset Management, LLC (BEAM), Bayesian Efficient Strategic Trading, LLC (BEST) and/or their affiliates unless otherwise specifically stated. All information and opinions expressed herein are subject to change without notice. This communication is not to be construed as an offer to sell or the solicitation of an offer to buy any security. 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