gamlss-formula

Experimental optional formula/builder layer for compiling user specifications into typed gamlss-core models.

gamlss-formula is not the primary API of the project. The main direction is the lower-level typed stack: gamlss-core, gamlss-family, gamlss-spline, and gamlss-transform.

This crate currently provides:

• typed DataView/Col<T> inputs;
• curated term builders such as linear terms, factors, interactions and splines;
• selected default family specs: normal, gamma, log-normal, Weibull, inverse Gaussian and beta.

It intentionally does not provide string formula parsing, fit loops, optimizer integration, diagnostics or dataframe adapters, and it is not expected to mirror every low-level distribution, link or parameterization.