minimax approximation of FIR filter
[hn]=eqfir(nf,bedge,des,wate)
:nf number of output filter points desired : :bedge Mx2 matrix giving a pair of edges for each band : :des M-vector giving desired magnitude for each band : :wate M-vector giving relative weight of error in each band : :hn output of linear-phase FIR filter coefficients :
Minimax approximation of multi-band, linear phase, FIR filter
hn=eqfir(33,[0 .2;.25 .35;.4 .5],[0 1 0],[1 1 1]);
[hm,fr]=`frmag`_(hn,256);
`plot`_(fr,hm),