Error using zeros, Size inputs must be scalar

train_data = zeros(num_train_data,1);

I get error on this line. I attached the screenshot of my num_train_data below.

PS Im new to matlab.

Answer 1

[Walter Roberson]

num_train_data should be referring to the number of training samples you have, not to the content of the training samples.

[Js Goh]

how should I change my code here? num_train_data = reresult(:,1:48);

reresult is my dataset as screenshot above.

Sry im too new to matlab.

[Walter Roberson]

num_train_data = size(reresult,1);

[Js Goh]

Im doing fingerprint recognition, I have 10 persons and 8 fingerprints images each person. Each image is represent by 862 numbers after feature extraction. Now I want to take 60% of my dataset as training data. How should I calculate the numbers of my training data?

Sry, Im confusing right now.

[Walter Roberson]

I suggest you try nprtool