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# tf.nn.sufficient_statistics

Calculate the sufficient statistics for the mean and variance of `x`.

These sufficient statistics are computed using the one pass algorithm on an input that's optionally shifted. See: https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Computing_shifted_data

`x` A `Tensor`.
`axes` Array of ints. Axes along which to compute mean and variance.
`shift` A `Tensor` containing the value by which to shift the data for numerical stability, or `None` if no shift is to be performed. A shift close to the true mean provides the most numerically stable results.
`keepdims` produce statistics with the same dimensionality as the input.
`name` Name used to scope the operations that compute the sufficient stats.

Four `Tensor` objects of the same type as `x`:

• the count (number of elements to average over).
• the (possibly shifted) sum of the elements in the array.
• the (possibly shifted) sum of squares of the elements in the array.
• the shift by which the mean must be corrected or None if `shift` is None.

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