adelie.glm.gaussian#

adelie.glm.gaussian(y: ndarray, *, weights: ndarray | None = None, dtype: float32 | float64 | None = None, opt: bool = True)[source]#

Creates a Gaussian GLM family object.

The Gaussian GLM family specifies the loss function as:

\[\begin{align*} \ell(\eta) = \sum\limits_{i=1}^n w_i \left( -y_i \eta_i + \frac{\eta_i^2}{2} \right) \end{align*}\]

The link function is given by

\[\begin{align*} g(\mu)_i &= \mu_i \end{align*}\]

Parameters:

y(n,) ndarray: Response vector \(y\).
weights(n,) ndarray, optional: Observation weights \(W\). Weights are normalized such that they sum to 1. Default is None, in which case, it is set to np.full(n, 1/n).
dtypeUnion[float32, float64], optional: The underlying data type. If None, it is inferred from y, in which case y must have an underlying data type of numpy.float32 or numpy.float64. Default is None.
optbool, optional: If True, an optimized routine is used when passed into adelie.solver.grpnet(). Otherwise, a general routine with IRLS is used. This flag is mainly for developers for testing purposes. We advise users to use the default value. Default is True.

Returns: