construction of a matrix

I just filling a matrix T by following this code normally the length is same to Ac but it return length(Ac)+1

(size(Ac)=[1 125] and size(Ac_estm)=[1 125])

P=size(Ac,2); T=[]; for (p=1:P) if Ac(p) < Ac_estm(p) T(p)=0;

    else
        T(p)=1;
    end
    T=[T T(p)];
end

==>size(T)=[1 126] why??

Answer 1

[Andrei Bobrov]

this cycle is not needed

T = Ac >= Ac_estm;     % T is logical class
T = +(Ac >=  Ac_estm); % T is double

but with loop

T = zeros(size(Ac));
for  p=1:length(Ac) 
    if Ac(p) < Ac_estm(p)
        T(p)=0;
    else
        T(p)=1;
    end
end

[samia]

thank you!!!