update_linear_gaussian_gaussian

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function update_linear_gaussian_gaussian(x:Real, a:Real, μ:Real, σ2:Real, c:Real, s2:Real) -> (Real, Real)

Update the parameters of a Gaussian distribution with a Gaussian likelihood and scaling.

• x: The variate.
• a: Scale.
• μ: Prior mean.
• σ2: Prior variance.
• c: Offset.
• s2: Likelihood variance.

Returns: the posterior hyperparameters μ' and λ'.