% random integer generation by M kinds
X = randint(Ndata, 1, M);
% digital symbol mapped as analog symbol
Y1 = modmap(X, Fd, Fs, 'qask', M);
% covert to complex number
Y2=amodce(Y1,1,'qam');
运行之后出现这个：?? Undefined command/function 'randint'.
Error in ==> ofdm_signal at 30
X = randint(Ndata, 1, M);
求助！谢谢~
