I have a NumPy array of strings: 'n', 'y', wanna convert it into integer array of 0, 1, how to convert it?
imp = SimpleImputer(missing_values=np.nan, strategy='most_frequent')
X = imp.fit_transform(X)
X
array([['n', 'y', 'n', ..., 'y', 'n', 'y'],
['n', 'y', 'n', ..., 'y', 'n', 'y'],
['n', 'y', 'y', ..., 'y', 'n', 'n'],
...,
['n', 'y', 'n', ..., 'y', 'n', 'y'],
['n', 'n', 'n', ..., 'y', 'n', 'y'],
['n', 'y', 'n', ..., 'y', 'n', 'n']], dtype=object)