Interpolation method for timeseries object
getinterpmethod(ts) returns the interpolation method that the timeseries object ts, uses as a string.
Predefined interpolation methods are zero-order hold, zoh, and linear interpolation, linear. Linear interpolation is the default.
Create a timeseries object, and then get its interpolation method:
ts = timeseries(rand(5)); getinterpmethod(ts)