"Merge" combines all selected single-channel, multi-channel and complex signals to a new multi-channel signal y. If n input signals are given, a signal with at least n channels is returned.
The input signal types need not be identical; complex input signals will be treated as two-channel signals.
Note that the scales (sampling periods) and shifts (x-axis offsets) of
all input signals must be identical.
y = Merge([x1,x2,...,xn]);
Split, Extract, GetMCSignal