I want to low-pass filter a sequence with the Butterworth Filter vi,
where the filter is initialized to the first value of the sequence
(which is typically non-zero). It appears that the vi eventually calls
the IIR_Filter2 function, which has only a "reset" argument (presumably
which initializes the internal states to zero).
Can someone suggest an elegant method to initialize the filter to an
arbitrary value? Or, is it necessary to first run a dummy sequence
composed of the desired arbitrary initial value through the filter
(with the appropriate filter parameters), and then do the actual filter
step with the init/cont input set to "cont"?
Thanks,
Lyle
