why Matlab show me INI_PHASE must be a real scalar?

im using version 2015a

[xInit, ~] = find_init_sol(y,h,'MMSE',sigma,'64QAM');

[xHatTS, ~] = TS_real(y, h, m, P, '64QAM', Nt, xInit);

x_hat1 = xHatTS(1);

x_zfmod1 = qamdemod(x_hat1,M,'gray'); %%this line they show me INI_PHASE must be a real scalar.

Answer 1

[Ayush Gupta]

The current documentation for qamdemod function doesn’t use INI_PHASE and since you are using a previous version, you should be referring to the documentation for your version, not for current versions. https://www.mathworks.com/help/releases/R2015b/comm/ref/qammod.html

[Choi]

thank you is this for 2015version??

[Walter Roberson]

That is r2015b documentation ad the R2015a archives were removed