Combination of Elements of Vectors

Question

Temitope Amao 2018-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/399307-combination-of-elements-of-vectors

评论： Temitope Amao 2018-5-6

Please I need help creating a matrix containing all possible combinations of the elements of the following vectors: The order matters and elements are unique.

cf = [4.35e-09 7.25e-09 1.015e-08 ];
phif = [0.002 0.02 0.2];
kf0 = [ 4e-14 8e-14 1e-13];
xF = [100 120 150 180];
cm = [3.25e-10 7.25e-10];
cF = [4.35e-09 7.25e-09 1.015e-08];
Le = 880; 
nHF = [8 : 1: 12]; 
ye = [(Le./nHF)./2]; 
yc = [0.4.*ye 0.6.*ye 0.8.*ye]; 
phim = [0.12 0.3];
kF0 = [5e-11 1e-10 1.5e-10];
kminfty = [1e-18 1e-19];
phiF = [0.002 0.02];

My objective at each STEP is:

var(i:number_of_possible_combinations) = [cf phif kf0 xF cm cF  ye yc phim kF0 kminfty phiF  ];

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Answer 1

Stephen23 2018-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/399307-combination-of-elements-of-vectors#answer_318905

Download Jos's excellent FEX submission allcomb, which does exactly what you want. I leave it up to you to decide if your computer has enough memory, and you have enough time to wait for this to be calculated.

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Temitope Amao 2018-5-6

It Worked. Thanks.

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Answer 2

Yuvaraj Venkataswamy 2018-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/399307-combination-of-elements-of-vectors#answer_318902

Use concatenation function to create matrix using several vectors.

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Temitope Amao 2018-5-6

I'm trying to perform a combination so I'll have a whole lot of possible combinations not just a single matrix. I want to pick the first element of a vector and combine it with the first element of the other vectors and then the second etc..

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