pointer.py 文件源码

def __init__(self, data, rng=None):
        if rng is None:
            rng = np.random

        if is_integer(data):
            if data < 1:
                raise ValidationError("Number of dimensions must be a "
                                      "positive int", attr='data', obj=self)

            self.v = rng.randn(data)
            self.v /= np.linalg.norm(self.v)
        else:
            self.v = np.array(data, dtype=float)
            if len(self.v.shape) != 1:
                raise ValidationError("'data' must be a vector", 'data', self)
        self.v.setflags(write=False)