Solution
LabVIEW MathScript does not support all MATLAB's commands, but NI does not provide a list of unsupported command.
NI only provide a list of available function in the LabVIEW MathScript documentation. This information can be found in LabVIEW Help file when you have LabVIEW MathScript Module installed.
At LabVIEW menu bar, go to Help >> LabVIEW Help... to open LabVIEW Help file. In the tree, open the MathScript RT Module >> MathScript RT Module Functions page to see a list of available functions in LabVIEW MathScript.
