train_arima.log

{'mape': 1.4169945485342506, 'me': 4.129207521717338, 'mae': 264.57181078863806, 'mse': 94565.69679705199, 'rmse': 307.51536026197454}
RUNNING THE L-BFGS-B CODE

           * * *

Machine precision = 2.220D-16
 N =           23     M =           10

At X0         0 variables are exactly at the bounds

At iterate    0    f=  6.69740D+00    |proj g|=  8.66927D-01

At iterate    5    f=  6.42641D+00    |proj g|=  1.39638D-02

At iterate   10    f=  6.41512D+00    |proj g|=  2.05923D-02

At iterate   15    f=  6.40251D+00    |proj g|=  5.57062D-02

At iterate   20    f=  6.34552D+00    |proj g|=  7.17933D-02

At iterate   25    f=  6.27758D+00    |proj g|=  2.37453D-02

At iterate   30    f=  6.24226D+00    |proj g|=  1.14571D-02

At iterate   35    f=  6.22658D+00    |proj g|=  2.17845D-02

At iterate   40    f=  6.20128D+00    |proj g|=  6.12765D-03

At iterate   45    f=  6.19990D+00    |proj g|=  3.25035D-03

At iterate   50    f=  6.18890D+00    |proj g|=  3.28150D-02

           * * *

Tit   = total number of iterations
Tnf   = total number of function evaluations
Tnint = total number of segments explored during Cauchy searches
Skip  = number of BFGS updates skipped
Nact  = number of active bounds at final generalized Cauchy point
Projg = norm of the final projected gradient
F     = final function value

           * * *

   N    Tit     Tnf  Tnint  Skip  Nact     Projg        F
   23     50     63      1     0     0   3.282D-02   6.189D+00
  F =   6.1888991433494338     

STOP: TOTAL NO. of ITERATIONS REACHED LIMIT