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What is the difference between designfilt and fdesign

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Micke Malmström
Micke Malmström on 19 Oct 2017
Edited: Micke Malmström on 20 Oct 2017
Im trying to do zero phase filter my obj.CurrentData with this:
% FilterType='butter';
% FilterParam='N,F3dB1,F3dB2';
% BPFOrder=2;
d = fdesign.bandpass(obj.BPFilterParam,obj.BPFOrder,obj.BPFLimits(1),obj.BPFLimits(2),obj.Fs);
Hd = design(d,obj.BPFilterType);
obj.CurrentData=filtfilt(Hd,obj.CurrentData')';
But I only get: Error using filtfilt (line 78) Not enough input arguments.
It wants 3 inputs... although the help text says "y = filtfilt(d,x)" should work?

Answers (1)

Honglei Chen
Honglei Chen on 19 Oct 2017
Could you share which release you are using? You can find the info by runnig ver at the command prompt.
HTH

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