Creating matrix of unique combinations of variables

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Brian
Brian am 18 Okt. 2015
Kommentiert: Brian am 19 Okt. 2015
I need to create a matrix that lists out each combinations of variables in each row.
Assume that I have 5 variables a1, a2, a3, a4, a5 that all have 10 possible values of 0.1:0.1:1, what is an elegant way to list out the 10^5 rows of combinations?
Thank you so much!

Akzeptierte Antwort

Walter Roberson
Walter Roberson am 19 Okt. 2015
nvals = 5;
[a{1:nvals}] = ndgrid(0.1:0.1:1);
Result = cell2mat(cellfun(@(C) C(:), a, 'Uniform', 0));

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Martin Schätz
Martin Schätz am 18 Okt. 2015
Hi, it would be nice to have some code to work with included. But this is actually thing you would easily solve with MatLab help. Look at perms function. Input is your data and output is array of all possible combinations.

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