Why my variable is not defined in this scope?

I have the following function

dq_k = [];

for i1 = 1:numel(d_k)

if (d_k(i1) <= dR(end) && d_k(i1) >= dR(end-1)) % greater than or equal to maximum interval

dqe1 = dR2(end); % use maximum interval value

else

for i2 = 1:L-1

if (d_k(i1) <= dR(end-i2)) && (d_k(i1) >= dR(end-i2-1))

dqe1 = dR2(end-i2);

end

end

end

dq_k = [dq_k dqe1];

end

everytime I run it inside my whole code

it gives me this error

Unrecognized function or variable 'dqe1'.

Error in Trial2222 (line 63)

dq_k = [dq_k dqe1];

And here are my input varaibles to this function

dR =

1.0000 2.5000 4.0000 5.5000 7.0000

dR2 =

1.7500 3.2500 4.7500 6.2500

d_k =

1.0000 1.0000 0.2500 -0.5000 -1.2500 -2.0000 -2.7500

[Stephen23]

Check the value of L .

[Abdelrhman Abdelfatah]

I put its value to be 4, and I calculated the dR and dR2 based on L value as following

m_kmax= max(m_k);

m_kmin= min(m_k);

stepsize=((m_kmax-m_kmin)/L);

if tread == 1

dR =linspace(m_kmin,m_kmax,L+1);

else

dR= stepsize + linspace(m_kmin,m_kmax,L+1);

end

dR2=zeros(1,L);

for i=1:L

dR2(i) = ( dR(i) + dR(i+1)) ./ 2;

end

But what I just figured is my function attached in this comment, which was supposeded to switch Quantizier between midrise or midtread is not actually doing what it was supposed to do, that's why I am considering adjusting it.

Answer 1

[Dongyue]

If the two conditions:

if (d_k(i1) <= dR(end) &&  d_k(i1) >= dR(end-1)) 

and

if (d_k(i1) <= dR(end-i2)) && (d_k(i1) >= dR(end-i2-1))

are both not met, dqe1 will not be created unless you set default value for it.