How to create a numpy array of all True or all False?

How to create a numpy array of all True or all False?

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How to count the number of true elements in a NumPy bool array

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Inverting a numpy boolean array using ~

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python tilde unary operator as negation numpy bool array

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Comparing previous row values in Pandas DataFrame

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Select elements of numpy array via boolean mask array

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Filtering pandas dataframe with multiple Boolean columns

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pandas data frame transform INT64 columns to boolean

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numpy.isnan(value) not the same as value == numpy.nan?

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Memory-efficient way to generate a large numpy array containing random boolean values

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boolean and type checking in python vs numpy

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Passing a numpy pointer (dtype=np.bool) to C++

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Pythonic and efficient way to do an elementwise "in" using numpy

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NumPy boolean array warning?

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How to invert numpy.where (np.where) function

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