how can i store the solution (3D mtarix) and its value for a population of N

i have a population of N elements and each produce a certain solution configuration 3D matrix( for example solution X is X(:,:,1)=[1 2 3;4 5 6] and X(:,:,2)=[7 2 3;9 5 8]) this configuration results in an objective function or penalty function equals to 90) i need to store all the solution configurations for all the N population and the corresponding penalty function so that i'll report the best solution reached and its value&configuration. i need it to be fast. thank you

Answer 1

[Matt J]

So the question is how to store a set of 3D matrices? Why not use a 4D matrix

Configs(:,:,:,1)=X1
Configs(:,:,:,2)=X2
...
Configs(:,:,:,N)=XN  

or a cell array

Configs{1}=X1
Configs{2}=X2
...
Configs{N}=XN  

[Dalia Rashed]

this will only store the solution's configuration how can i attach for each solution configuration its penalty function

[Matt J]

Why not use a separate variable for that. It's just an Nx1 vector, right? Or, you could add a 2nd column to the cell array,

Configs{1,1}=X1
Configs{2,1}=X2
...
Configs{N,1}=XN  

Configs{1,2}=penalty1
Configs{2,2}=penalty2
...
Configs{N,2}=penaltyN 

[Matt J]

You could also use a struct array

S(1).config=X1
S(1).penalty=penalty1

...
    
S(N).config=XN
S(N).penalty=penaltyN

[Dalia Rashed]

thank you so much for your help.Matt J

[Matt J]

You're welcome, but please Accept-click the answer to indicate that it helped you.