How to create a matrix to contain possible combinations of 2 sets of 1D parameters

Hi,

I'd like to apply a function to all combinations of possible input parameters.

I just have 2 input parameters which are both vectors, so I'd like to create a matrix which effectively 'pairs' up my parameters.

Here's my code:

d=@(x,y) min(abs(x-y),1-abs(x-y));

x = 0:0.01:0.95;
y = 0:0.01:0.95;

Thank you!

N

Answer 1

[Matt Fig]

If you mean all possible permutations, do this:

x = 0:.5:2;
I = npermutek(x,2)  
I =

           0         0
           0    0.5000
           0    1.0000
           0    1.5000
           0    2.0000
      0.5000         0
      0.5000    0.5000
      0.5000    1.0000
      0.5000    1.5000
      0.5000    2.0000
      1.0000         0
      1.0000    0.5000
      1.0000    1.0000
      1.0000    1.5000
      1.0000    2.0000
      1.5000         0
      1.5000    0.5000
      1.5000    1.0000
      1.5000    1.5000
      1.5000    2.0000
      2.0000         0
      2.0000    0.5000
      2.0000    1.0000
      2.0000    1.5000
      2.0000    2.0000

npermutek is found on the FEX.

Answer 2

[Matt J]

result = bsxfun(d,x(:),y);

See also the NDGRID command.