fmincon里面的参数我都变成double了，为什么还是提示这个。。。
??? Error using ==> fmincon
FMINCON only accepts inputs of data type double.

Error in ==> PEM_MM>PMstep at 146
x=fmincon(@Ptheta,x0,Aeq,beq,lb,ub,[],options)

Error in ==> PEM_MM at 54
    param=PMstep(w,K,Gprob,param);  % PM-step