function DegP = rowdeg(P,degP)

%  to determine the row degrees of a polynomial matrix
%
%  call: DegP = rowdeg(P,degP)
%
%  H. Kwakernaak, July, 1990

[rP,cP] = polsize(P,degP); 
DegP = zeros(1,rP);
for i = 1:rP
    j = (degP+1)*cP;
    while P(i,j) == 0 & j >= 0
       j = j-1;
    end
    DegP(1,i) = ceil(j/cP)-1;
end