How can I create a multidimensional array from two vectors that have different dimensions using a for loop?

Hi I’m trying to create the following matrix from two vectors

A=1:2
B=4:7

C=[

1 4

1 5

1 6

1 7

2 4

2 5 

2 6

2 7]

Using a for loop So far I have

A=1:2
B=4:7

For i=1:2

     For j=1:4

         C(i,j)= [A(i) B(j)]

     End

End

After that I get a dimensional error. Any suggestions?

[Matt J]

Are you sure you want to do this with a for-loop?

[Guillermo Naranjo]

The arrays I have are 56 elements by 250. So I figured a for loop would be faster. Is there an easier way? Thanks for your answers!

Answer 1

[Matt J]

for i=1

     [b,a]=ndgrid(B,A);

     C=[a(:),b(:)]

end

[Guillermo Naranjo]

Thanks! this worked perfectly. I guess the need for the For loop is futile at this point. :) I was not aware of the ndgrid function. I appreciate the help!