ValueError:The requested array has an inhomogeneous shape after 2 dimensions.The detected shape was(318, 20)+inhomogeneous part

Question

from sklearn.neural_network import MLPClassifier
#Initialise Multi Layer Perceptron Classifier (MLP)
model = MLPClassifier(alpha = 0.01, batch_size = 256, epsilon = 1e-08, hidden_layer_sizes = (400,), learning_rate = 'adaptive', max_iter = 500)

model.fit(X_train, y_train)

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
 in 
----> 1 model.fit(X_train, y_train)

5 frames
/usr/local/lib/python3.8/dist-packages/sklearn/neural_network/_multilayer_perceptron.py in fit(self, X, y)
    750             Returns a trained MLP model.
    751         """
--> 752         return self._fit(X, y, incremental=False)
    753 
    754     def _check_solver(self):

/usr/local/lib/python3.8/dist-packages/sklearn/neural_network/_multilayer_perceptron.py in _fit(self, X, y, incremental)
    391         )
    392 
--> 393         X, y = self._validate_input(X, y, incremental, reset=first_pass)
    394 
    395         n_samples, n_features = X.shape

/usr/local/lib/python3.8/dist-packages/sklearn/neural_network/_multilayer_perceptron.py in _validate_input(self, X, y, incremental, reset)
   1098 
   1099     def _validate_input(self, X, y, incremental, reset):
-> 1100         X, y = self._validate_data(
   1101             X,
   1102             y,

/usr/local/lib/python3.8/dist-packages/sklearn/base.py in _validate_data(self, X, y, reset, validate_separately, **check_params)
    579                 y = check_array(y, **check_y_params)
    580             else:
--> 581                 X, y = check_X_y(X, y, **check_params)
    582             out = X, y
    583 

/usr/local/lib/python3.8/dist-packages/sklearn/utils/validation.py in check_X_y(X, y, accept_sparse, accept_large_sparse, dtype, order, copy, force_all_finite, ensure_2d, allow_nd, multi_output, ensure_min_samples, ensure_min_features, y_numeric, estimator)
    962         raise ValueError("y cannot be None")
    963 
--> 964     X = check_array(
    965         X,
    966         accept_sparse=accept_sparse,

/usr/local/lib/python3.8/dist-packages/sklearn/utils/validation.py in check_array(array, accept_sparse, accept_large_sparse, dtype, order, copy, force_all_finite, ensure_2d, allow_nd, ensure_min_samples, ensure_min_features, estimator)
    744                     array = array.astype(dtype, casting="unsafe", copy=False)
    745                 else:
--> 746                     array = np.asarray(array, order=order, dtype=dtype)
    747             except ComplexWarning as complex_warning:
    748                 raise ValueError(

ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (318, 20) + inhomogeneous part.

for i in  X_train:
  print(i.shape)

(20, 100)
(20, 80)
(20, 69)
(20, 60)
(20, 67)
(20, 60)
(20, 60)
(20, 69)
(20, 63)
(20, 60)
(20, 92)
(20, 70)
(20, 63)
(20, 79)
(20, 53)
(20, 81)
(20, 86)
(20, 69)
(20, 87)
(20, 79)
(20, 76)
(20, 58)
(20, 84)
(20, 89)
(20, 90)
(20, 94)
(20, 117)
(20, 57)
(20, 83)
(20, 63)
(20, 81)
(20, 76)
(20, 84)
(20, 80)
(20, 73)
(20, 120)
(20, 79)
(20, 73)
(20, 81)
(20, 84)
(20, 81)
(20, 86)
(20, 74)
(20, 92)
(20, 84)
(20, 104)
(20, 73)
(20, 54)
(20, 81)
(20, 84)
(20, 76)
(20, 81)
(20, 107)
(20, 109)
(20, 107)
(20, 86)
(20, 94)
(20, 80)
(20, 73)
(20, 69)
(20, 107)
(20, 67)
(20, 79)
(20, 76)
(20, 70)
(20, 56)
(20, 70)
(20, 66)
(20, 71)
(20, 83)
(20, 74)
(20, 64)
(20, 76)
(20, 94)
(20, 69)
(20, 71)
(20, 103)
(20, 80)
(20, 97)
(20, 83)
(20, 79)
(20, 70)
(20, 70)
(20, 99)
(20, 90)
(20, 67)
(20, 64)
(20, 73)
(20, 87)
(20, 71)
(20, 84)
(20, 69)
(20, 84)
(20, 66)
(20, 92)
(20, 90)
(20, 67)
(20, 104)
(20, 71)
(20, 63)
(20, 96)
(20, 79)
(20, 84)
(20, 104)
(20, 54)
(20, 97)
(20, 81)
(20, 61)
(20, 79)
(20, 81)
(20, 79)
(20, 93)
(20, 102)
(20, 107)
(20, 76)
(20, 106)
(20, 94)
(20, 79)
(20, 99)
(20, 66)
(20, 100)
(20, 70)
(20, 83)
(20, 87)
(20, 93)
(20, 76)
(20, 77)
(20, 76)
(20, 73)
(20, 66)
(20, 107)
(20, 71)
(20, 79)
(20, 699)
(20, 57)
(20, 57)
(20, 70)
(20, 107)
(20, 84)
(20, 71)
(20, 71)
(20, 99)
(20, 67)
(20, 77)
(20, 92)
(20, 81)
(20, 76)
(20, 54)
(20, 77)
(20, 63)
(20, 64)
(20, 83)
(20, 66)
(20, 64)
(20, 110)
(20, 81)
(20, 74)
(20, 64)
(20, 76)
(20, 71)
(20, 71)
(20, 87)
(20, 146)
(20, 96)
(20, 97)
(20, 103)
(20, 70)
(20, 60)
(20, 61)
(20, 77)
(20, 70)
(20, 104)
(20, 83)
(20, 96)
(20, 53)
(20, 86)
(20, 64)
(20, 90)
(20, 92)
(20, 64)
(20, 84)
(20, 69)
(20, 63)
(20, 69)
(20, 46)
(20, 50)
(20, 56)
(20, 60)
(20, 100)
(20, 50)
(20, 51)
(20, 96)
(20, 92)
(20, 87)
(20, 84)
(20, 63)
(20, 64)
(20, 90)
(20, 71)
(20, 54)
(20, 126)
(20, 80)
(20, 79)
(20, 63)
(20, 89)
(20, 94)
(20, 77)
(20, 87)
(20, 69)
(20, 67)
(20, 90)
(20, 84)
(20, 117)
(20, 77)
(20, 70)
(20, 80)
(20, 90)
(20, 81)
(20, 81)
(20, 64)
(20, 79)
(20, 56)
(20, 60)
(20, 79)
(20, 73)
(20, 58)
(20, 67)
(20, 89)
(20, 80)
(20, 57)
(20, 96)
(20, 83)
(20, 70)
(20, 81)
(20, 69)
(20, 83)
(20, 80)
(20, 58)
(20, 93)
(20, 64)
(20, 63)
(20, 60)
(20, 64)
(20, 92)
(20, 63)
(20, 80)
(20, 106)
(20, 93)
(20, 63)
(20, 80)
(20, 96)
(20, 90)
(20, 112)
(20, 80)
(20, 90)
(20, 94)
(20, 86)
(20, 94)
(20, 79)
(20, 80)
(20, 76)
(20, 47)
(20, 60)
(20, 76)
(20, 90)
(20, 70)
(20, 96)
(20, 142)
(20, 92)
(20, 89)
(20, 84)
(20, 69)
(20, 71)
(20, 81)
(20, 106)
(20, 63)
(20, 80)
(20, 69)
(20, 86)
(20, 92)
(20, 69)
(20, 83)
(20, 80)
(20, 57)
(20, 61)
(20, 67)
(20, 97)
(20, 94)
(20, 94)
(20, 54)
(20, 76)
(20, 89)
(20, 70)
(20, 79)
(20, 69)
(20, 67)
(20, 53)
(20, 90)
(20, 81)
(20, 94)
(20, 100)
(20, 90)
(20, 70)
(20, 70)
(20, 71)
(20, 83)
(20, 70)
(20, 84)
(20, 86)
(20, 66)
(20, 87)
(20, 70)
(20, 63)
(20, 69)
(20, 94)
(20, 58)
(20, 92)
(20, 83)

need help to solve this error

ValueError:The requested array has an inhomogeneous shape after 2 dimensions.The detected shape was(318, 20)+inhomogeneous part

Answers (1)

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