What's legit here?
- To: mathgroup at smc.vnet.net
- Subject: [mg39940] What's legit here?
- From: Steve Gray <stevebg at adelphia.net>
- Date: Wed, 12 Mar 2003 02:31:36 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In the following function, most of which you can ignore, there is an If [ enalist ... etc. where several statements to be executed if the If succeeds are grouped with ( ) . This works but I thought the right way to group several statements together was with { }. The latter does not work and I find I don't know what the correct way is. As usual, Mathematica did not complain with the { } or the ( ). The effect was to have the If always fail and for the function to always Return [ failu ]. Whether the comments get in the way, I don't know, but if someone would define what's legal here, I would appreciate it. Thank you. ranqrs := Module[{res2}, ptab = Table[0, {i, NN}]; If[changeq == 1, qtab = Table[Random[Integer, {1, NN - 1}], {i, NN - 1}]]; If[changer == 1, rtab = Table[Random[Integer, {0, NN - 1}], {i, NN - 1}]]; If[changes == 1, stab = Mod[Table[1, {i, NN - 1}] - rtab, NN]]; matall; (* Make matrices from model. *) matmul; (* Compute matrix product. *) result = newres; If [ enalist[[result]] == 1, (* If a good value = > try again; *) ( newmmt; (* make a new model & target, *) res2 = newres; (* do another test. *) If [res2 == result, Return[result]]; (* If agree, return good result. *) )]; Return[failu]; (*If no agree or no interest, 0. *) ]
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