Logistic Regression get Value error could not convert string to float: '?'
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The training input x and output y must be of type np.float64. If you want to use strings, you need to encode them before fitting .
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Updated on June 05, 2022Comments
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Admin almost 2 years
I am very new at this stuff. This is from a course I am taking; I need to fit the Logistic Regression classifier
I enter
from sklearn.linear_model import LogisticRegression C=1.0 classifier = LogisticRegression(C=C, penalty='l1') classifier.fit(x, y)
and get a Value Error
ValueError Traceback (most recent call last) <ipython-input-33-9d4de811daf9> in <module>() ----> 1 classifier.fit(x, y) ~\Anaconda3\lib\site-packages\sklearn\linear_model\logistic.py in fit(self, X, y, sample_weight) 1214 1215 X, y = check_X_y(X, y, accept_sparse='csr', dtype=_dtype, -> 1216 order="C") 1217 check_classification_targets(y) 1218 self.classes_ = np.unique(y) ~\Anaconda3\lib\site-packages\sklearn\utils\validation.py in check_X_y(X, y, accept_sparse, dtype, order, copy, force_all_finite, ensure_2d, allow_nd, multi_output, ensure_min_samples, ensure_min_features, y_numeric, warn_on_dtype, estimator) 571 X = check_array(X, accept_sparse, dtype, order, copy, force_all_finite, 572 ensure_2d, allow_nd, ensure_min_samples, --> 573 ensure_min_features, warn_on_dtype, estimator) 574 if multi_output: 575 y = check_array(y, 'csr', force_all_finite=True, ensure_2d=False, ~\Anaconda3\lib\site-packages\sklearn\utils\validation.py in check_array(array, accept_sparse, dtype, order, copy, force_all_finite, ensure_2d, allow_nd, ensure_min_samples, ensure_min_features, warn_on_dtype, estimator) 431 force_all_finite) 432 else: --> 433 array = np.array(array, dtype=dtype, order=order, copy=copy) 434 435 if ensure_2d: ValueError: could not convert string to float: '?'
Please help