piis:
1. get set (main)
2. scale set(scaler)
3. divide set into training and validation set (validator)
 loop(k 1->15)
 3. create polynomial desc based on k (converter)
 4. convert polynomial so k = 1 (converter)
 5. train polynomial with train set (trainer)
 6. check error for given k usign validation set(validator, trainee)
 endloop
7. select best error and k(validator)
8. create polynomial desc based on final k (converter)
9. train polynomial with train set (trainer)
10. calculate output from input (main, trainee)
11. descale output data (scaler)