How to get all possible combinations from two arrays

[rojartom]

Hi,  

There are two arrays and I want to get all possible combinations

array 1= a , b, c, d...

array 2=x ,y ,z.....

array 3= a  x

               a y

               a z

               b x

               b y

              ..........                  

[GerdW · Accepted solution]

Hi rojartom,

when all LabVIEW beginners would take the free online resources offered by NI they surely would know how to use the autoindexing of arrays in loops:

With recent LabVIEW versions this would be even easier as you would have access to "concatenating output tunnels" - but it seems you're stuck with LV8.2…

[dominikv]

Hello,

I have question, it is possible to modify this solution to this kind of problem. I need combination of 2 arrays each with 2 columns. So the elements of each row of array will stay together.

Thank you in advance.

DV

[RavensFan]

Have you tried to apply your 2-D arrays to the example shown above for 1-D arrays?

You'll find when you auto-index a 1-D array, it takes it 1 element at a time.  When you auto-index a 2-D array, it takes it 1 row at at time.

You may need to change the way the array is built inside the inner most For Loop to Concatenate mode.  But if you play around and experiment, I think you'll find the solution you want is not that much different than the one already presented!

[dominikv]

Thank you, I tried solution you suggested but I get different format of solution. 

[GerdW]

Hi Dominik,

when you want to append row from array1 with row of array2 you should change the mode of IndexArray in the inner loop to concatenating.

And you don't need the outer loop for your next try…

[RavensFan]

Gerd is correct.

And if you go back to my message, you'll see I said "You may need to change the way the array is built inside the inner most For Loop to Concatenate mode" 😉

[altenbach]

Also don't forget the concatenating tunnel, greatly simplifying things:

[dominikv]

Thank you very much for your help. That is what I have looked for.