Indicate normalized RMSE error to stop neural network training.
A neural network calculation is stopped if RMSE error is less than value
of this keyword.The RMSE is defined as **SQRT(SUM{(Ycalc-Yexp)^2}/n)**,
where **Ycalc** is calculated, **Yexp** is normalized
target value, and **SUM** is over **n** values. The **Ycalc**
values are calculated by simple average over all neural network predictions
in the ENSEMBLE. The termination of program
is done if RMSE error calculated for the learning set is less than **LIMIT**.

The default value is {0.0001}.