MatrixView

Read-only N-by-M matrix. Sealed alongside VectorView so snapshots round-trip through kotlinx.serialization with their concrete storage preserved. Public surface is read-only; shape, entry access, materialise to Array<DoubleArray>. Mutation, factorisations, and arithmetic are internal to kumulant.

Surfaced primarily by the full-covariance regression results: com.eignex.kumulant.stat.regression.glm.CovarianceRegressionResult carries the posterior covariance and its Cholesky factor as MatrixViews so a downstream consumer can sample from the joint posterior without recomputing the decomposition.

Only DenseMatrix today. A CSR/CSC sparse matrix can land here when a consumer needs it; the only callers today (full-covariance regression stats) have intrinsically dense state.

Inheritors