Question
>> fdatool ??? Error using ==> registeranalysis Too many input arguments. Error in ==> C:\MATLAB6p5\toolbox\filterdesign\filterdesign\fdplugin.m (installanalyses) On line 150 ==> [hmenu htoolbar] = registeranalysis(hFVT, 'Noise Loading Method', ... Error in ==> C:\MATLAB6p5\toolbox\signal\sigtools\addplugins.m On line 54 ==> feval(fcnStruct.(classname), hObj); Error in ==> C:\MATLAB6p5\toolbox\signal\sigtools\private\fdatool_fvtool.m On line 19 ==> addplugins(hFVT); Error in ==> C:\MATLAB6p5\toolbox\signal\sigtools\private\addcomponents.m On line 17 ==> fdatool_fvtool(hFDA); Error in ==> C:\MATLAB6p5\toolbox\signal\sigtools\fdatool.m On line 32 ==> addcomponents(hFDA);
Expert Answer
John Michell
PhD Expert
Answered Aug 14, 2026
This is a bug in Release 13 that occurs only when the Signal Processing Toolbox has been upgraded to R13+ but the Filter Design Toolbox has not. To fix the issue, install both the Signal Processing Toolbox 6.1 (R13+) AND Filter Design Toolbox 2.5 (R13+).
NOTE: As explained in the Release Notes for both the Signal Processing Toolbox 6.1 and the Filter Design Toolbox 2.5, you must first UNINSTALL the existing toolboxes before installing the new upgrades.
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