I have a matrix of 8 columns and I want to select 2 column vectors at a time. And I want to select all possible binary combinations.
I used nchoosek to calculate the combination size as 28.
I tried using datasample, perms and randperm. But turns out nchoosek is the only function that selects all possible random combination. The issue I am facing is it does not let in a value of matrix as input. Is there any built in function in MATLAB that I am missing?
What if you try the following -> Since nchoosek does not allow the whole matrix as input you can try the following:
1. Name your matrix columns with numbers 1 to 8: MatrixColumns = 1:8;
2. Pass the vector of matrix columns to nchoosek: ALLComb = nchoosek(MatrixColumns,2);
The result ALLComb should give a 28x 2 matrix with the different combinations, which you can then use.
There is a function called combnk that will enumerate combinations for you. From the MATLAB doc: " C = combnk(v,k) returns all combinations of the n elements in v taken k at a time."
I think you can simply use a nested 'for' function to consider all possible options.
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