Issue with FA.score "'FA' object has no attribute 'n_domains_'"

[ymouad]

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AttributeError Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_13888/463825728.py in
12
13 model_FE = FA(X_src, y_src, X_tgt_train, y_tgt_train)
---> 14 FE_scores.append(model_FE.score(X_tgt_test, y_tgt_test))
15 C = model_FE.estimator_.coef_
16 src_sumCoef.append( np.sum(np.abs(C[0:X_tgt_test.shape[1]])) )

~\anaconda3\lib\site-packages\adapt\base.py in score(self, X, y, sample_weight, domain)
713 ]
714 if "domain" in args:
--> 715 X = self.transform(X, domain=domain)
716 else:
717 X = self.transform(X)

~\anaconda3\lib\site-packages\adapt\feature_based_fa.py in transform(self, X, domain)
224 X = check_array(X, allow_nd=True)
225 if domain in ["tgt", "target"]:
--> 226 X_emb = np.concatenate((np.zeros((len(X), X.shape[-1]*self.n_domains_)),
227 X,
228 X),

AttributeError: 'FA' object has no attribute 'n_domains_'

[antoinedemathelin]

It seems that you forgot to use fit in line 13, it should be:

model_FE = FA(estimator=Ridge()).fit(X_src, y_src, X_tgt_train, y_tgt_train)