Hi,
I have to design a nyquist interpolation filter which should satisfy all
the properties of pulse shaping i.e zero ISI and nonnegative magnitude
response etc.First I thought using remez algorithm 'firgr' function but 
it doesn't optimize time domain response.So now I have seen 'firnyquist'
function in the matlab for my design.

But it is only taking order,rolloff factor,inetpolation factor and is
not asking about sampling frequency ,cut off frequencies nad stop band
attenuation ,then how can I impose my design specifications.

Please clarify my ambiguities.......

Regards
Methari Srinivas
M.Tech,NIT Durgapur