Fix use of dropout in .

riid/models/neural_nets/basic.py

@@ -129,7 +129,7 @@ def fit(self, ss: SampleSet, batch_size: int = 200, epochs: int = 20,
  kernel_regularizer=l2(self.l2_alpha),
  )(inputs)
  if self.dropout is not None:
- last_layer = Dropout(0.2)(dense_layer)
+ last_layer = Dropout(self.dropout)(dense_layer)
  else:
  last_layer = dense_layer
  outputs = Dense(Y.shape[1], activation=self.final_activation)(last_layer)