%% Options for scaling SOS filter
% Create an options scaling object that contains the scaling options settings you require.

EllipI = design(fdesign.lowpass('N,Fp,Ap,Ast',10,0.5,0.5,20), 'ellip', 'FilterStructure', 'df1sos','SystemObject',true)
opts = scaleopts(EllipI)

% Copyright 2012 The MathWorks, Inc.