python integer_Python numpy.integer() 使用实例

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Example 1

def pack_samples(self, samples, dtype=None):

"""Pack samples into one integer per sample

Store one sample in a single integer instead of a list of

integers with length `len(self.nsoutdims)`. Example:

>>> p = pauli_mpp(nr_sites=2, local_dim=2)

>>> p.outdims

(6, 6)

>>> p.pack_samples(np.array([[0, 1], [1, 0], [1, 2], [5, 5]]))

array([ 1, 6, 8, 35])

"""

assert samples.ndim == 2

assert samples.shape[1] == len(self.nsoutdims)

samples = np.ravel_multi_index(samples.T, self.nsoutdims)

if dtyp