Can someone resolve this problem

Question

# split data into its X and y components
X, y = data1.values[:,0:1], data1.values[:,1]

X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.50, random_state=0)

logreg = LogisticRegression()

# Fit logreg to the train set
logreg.fit(X_train,y_train)

ValueError                                Traceback (most recent call last)
<ipython-input-59-c70ce69fd488> in <module>
      2 
      3 # Fit logreg to the train set
----> 4 logreg.fit(X_train,y_train)
      5 

~\anaconda3\lib\site-packages\sklearn\linear_model\_logistic.py in fit(self, X, y, sample_weight)
   1525 
   1526         X, y = check_X_y(X, y, accept_sparse='csr', dtype=_dtype, order="C",
-> 1527                          accept_large_sparse=solver != 'liblinear')
   1528         check_classification_targets(y)
   1529         self.classes_ = np.unique(y)

~\anaconda3\lib\site-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, warn_on_dtype, estimator)
    753                     ensure_min_features=ensure_min_features,
    754                     warn_on_dtype=warn_on_dtype,
--> 755                     estimator=estimator)
    756     if multi_output:
    757         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, accept_large_sparse, dtype, order, copy, force_all_finite, ensure_2d, allow_nd, ensure_min_samples, ensure_min_features, warn_on_dtype, estimator)
    529                     array = array.astype(dtype, casting="unsafe", copy=False)
    530                 else:
--> 531                     array = np.asarray(array, order=order, dtype=dtype)
    532             except ComplexWarning:
    533                 raise ValueError("Complex data not supported\n"

~\anaconda3\lib\site-packages\numpy\core\_asarray.py in asarray(a, dtype, order)
     83 
     84     """
---> 85     return array(a, dtype, copy=False, order=order)
     86 
     87 

ValueError: could not convert string to float: 'yes'

MD · Answer 1 · Jul 9, 2020

Hi@Abhirup,

Your dataset contains a string value. You need to remove the string value or convert the string value into some dummy variable. Machine Learning does not understand string values. You can use one concept named OneHotEncoding. It will create dummy variables for your string value.