8.4.5 Getting the Loss Value For a Pg2vec Model

You can fetch the training loss value on a specified fraction of training data (set in builder using setValidationFraction) as described in the following code:

Getting the Loss Value Using JShell

opg4j> var loss = model.getLoss();

Getting the Loss Value Using Java

double loss = model.getLoss();

Getting the Loss Value Using Python

loss = model.loss