LabVIEW has a Matlab Script Node (Programs >> Mathematics >> Formula) that you can use to interface between the two programs. To pass arrays into the script node do the following: 1. Right-click on the left edge and select "Add Input" 2. Give the input a variable name in the termainal that was created. 3. Right click on the terminal and select Choose Data Type >> Real Vector.
You can now wire the 1D array to this terminal. You enter your Matlab Commands as text inside the node and you can create outputs the same way to created inputs.