def fit(self, X):
    '[summary]\n\n        Args:\n            X ([type]): [description]\n        '
    self.sigma2_ = np.zeros((X.shape[(- 1)],), dtype=X.dtype)
    self.sigma2_ = (X[0, :] * X[0, :])
    self.transform(X[1:, :])
[summary]

Args:
    X ([type]): [description]
def fit(self, X):
    '[summary]\n\n        Args:\n            X ([type]): [description]\n        '
    self.sigma2_ = np.zeros((X.shape[(- 1)],), dtype=X.dtype)
    self.sigma2_ = (X[0, :] * X[0, :])
    self.transform(X[1:, :])