All the combinations for 3 variables

32 Ansichten (letzte 30 Tage)
Salad Box
Salad Box am 13 Jan. 2023
Kommentiert: Salad Box am 13 Jan. 2023
Hi,
I have 3 variables, each of which is an array containing differnet numbers of elements.
If I take a simple case as an example, for instance,
x = [0, 1];
y = [0, 1];
z = [0, 1];
Then in reality I would have in total 8 different combinations of xyz that are xyz =
[0 0 0;
0 0 1;
0 1 0;
0 1 1;
1 0 0;
1 0 1;
1 1 0;
1 1 1];
I wonder whether Matlab has a function for this application or do I have to loop it and write my own algorithm in order to obtain all different combinations.
If there is a function, I expect it to be more robust for cases that x, y and z doesn't have to be the same length. In another word, x, y and z doesnt have to contain same number of elements.
Because in reality I would have a lot of points in each of those x, y and z, if I loop it it is gonna take forever I guess.

Akzeptierte Antwort

Torsten
Torsten am 13 Jan. 2023
Bearbeitet: Torsten am 13 Jan. 2023
Or use ndgrid:
x = [0, 1];
y = [0, 1];
z = [0, 1];
[X,Y,Z] = ndgrid(x,y,z);
result = [X(:) Y(:) Z(:)]
result = 8×3
0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1
  1 Kommentar
Salad Box
Salad Box am 13 Jan. 2023
That worked perfectly. Thank you very much.:)

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Kategorien

Mehr zu Matrices and Arrays finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by