I have multiple files. I need to combine info in the files.

I have multiple files of the same length that represent a and b. For each value in a, I need to create a table such that I get a1b1, a1b2, a1b3...to a1b10. Then a2b1, a2b2, a2b3....a2b10. Then a3b1, a3b2, a3b3....a3b10. This should happen until I get a10b1, a10b2, a10b3....a10b10. How would I create this loop?

[Walter Roberson]

What does a1b1 mean in this case? Is it [a1, b1], or is it a1*b1 ?

[Sunshine]

I have tables a (1 row, 10 columns) and b (1 row, 10 columns). I want to combine tables a and b such that I get a new table of [a1, b1], [a1, b2], [a1, b3]...to [a1, b10], etc...I'm sure there's a way to use a for loop to do it. I see how to concatenate to get a 2 row by 10 column table but I'm struggling with the aforementioned structure. Basically, the data forms point values but I'm trying to read them in to get them to the point format.

[Rik]

Maybe meshgrid (or ndgrid) is what you're looking for.

[Sunshine]

yes, thanks. meshgrid works.

Answer 1

[Stephen23]

As Rik suggested:

av = a(:);
bv = b(:);
[X,Y] = ndgrid(1:10);
M = [av(X(:)),bv(Y(:))]

[Sunshine]

yes, thanks a bunch. This got me going. I changed ndgrid to meshgrid and that produced the output I was looking for.

[Rik]

I personally prefer ndgrid, as the extension to higher dimensions is more obvious.