Genetic Algorithm - Vectorized Mode - Reg
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'Position' is a (68,6) array of doubles representing the population of Genetic algorithm. 'classGA1 ' is a (68,1) cell array of the type of population class ( inventory class A,B or C) . 'ClassDM1 ' is a (68,1) cell array of the inventory class(A,B, or C)given by the decision maker (materials manager).
[Fitness] = InvClassifyGAFitnessFunc(Position,classGA1,ClassDM1);
is the Fitness is a (68,1) double array determining the fitness of population.
I want to operate the GA in vectorized mode.
[Fitness] = @(Position)InvClassifyGAFitnessFunc(Position(':',1:6),classGA1{':',1},ClassDM1{':',1});
% vff = @(Position) InvClassifyGAFitnessFunc(Position(':',1:6), classGA1{':'},CDM1{':'});
A=[0,0,0,0,-1,1];
b=[0];
Aeq=[1,1,1,1,0,0];
beq=[1];
lb=[0,0,0,0,0,0];
ub=[1,1,1,1,1,1];
options= gaoptimset('PlotFcn',@gaplotbestf,'Vectorized','on');
[x,fval]=ga(Fitness,6,A,b,Aeq,beq,lb,ub,[],options);
The genetic algorithm is giving the error message
Error using InvClassifyGAFitnessFunc
Too many input arguments.
How to run my genetic algorithm in vectorized mode.
回答（2 个）
Walter Roberson
2018-12-30
'classGA1 ' is a (68,1) cell array of the type of population class
When that is the case, then
classGA1{':',1}
expands into 68 different arguments, equivalent to classGA1{:}
4 个评论
madhan ravi
2018-12-30
编辑：madhan ravi
2018-12-30
+1 sir Walter really humbled(gentled) with your answer as always, interesting was the fact is classGA1{':',1} (was really new) is equivalent to classGA1{:} (which I was aware of this).
out of curiosity : Is there any link about this notation so that more can be learn't?
Walter Roberson
2018-12-30
This gets down to some some internals on how MATLAB processes the : operator . When : is used by itself as a parameter, then what gets passed is ':' (the character), and subsref detects that and understands it as requesting the entire array along that dimension.
@madhan ravi: indexing using parentheses, curly braces, etc, is just a convenience notation for subsref. You can see examples in its help:
And also some threads on this forum, showing how this is useful:
This is also why those tutors who give assignments which boldly state "inbuilt functions cannot be used" really are making life very hard for their pupils!
madhan ravi
2018-12-30
Thank you!
madhan ravi
2018-12-29
0 个投票
Your function requires only two inputs whereas you have stuffed in 3 .
4 个评论
Siva
2018-12-29
madhan ravi
2018-12-29
I don't have any experience with GA but seeing your previous question but it's clear that the function was made with two input arguments there.
Siva
2018-12-30
"Your function requires only two inputs whereas you have stuffed in 3 ."
There are actually 137 inputs to InvClassifyGAFitnessFunc:
Three inputs is probably the correct number, judging by this earlier thread:
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