`regmed`

PackageMediation analysis for multiple mediators by penalized structural equation models using sparse group lasso. The penalty considers the natural groupings of parameters that determine mediation, as well as encourages sparseness of the model parameters.

`regmed.grid()`

Function`regmed.grid()`

is a function that fits regularized
mediation models over a vector grid of lambda penalty values. Structural
equation models for analysis of multiple mediators are extended by
creating a sparse group lasso penalized model such that the penalty
considers the natural groupings of the pair of parameters that determine
mediation, as well as encourages sparseness of the model parameters.

`regmed.fit()`

Function`regmed.fit()`

fits a regularized mediation model for a
specified lambda penalty value. We provide summary and plot methods
implemented on the S3 class created by the function.