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For new basin analyses use create.basin.complex with explicit adjacency, aligned edge lengths, and a scalar field. The function guide vignette contains a complete task map and status-labeled export catalog.

Retired constructors

compute.gfc(), compute.basins.of.attraction(), compute.gfc.trajectory(), compute.gfc.flow(), and create.basin.cx() raise migration errors. Choose canonical geodesic_reachability, trajectory_flow, rtcb, superlevel_merge_tree, or overlap_cell_complex as appropriate, and translate refinement controls into simplify.params. There is no merge_tree alias. Arguments are edge.length.list and field, not weight.list and f. as.basin.complex reconstructs compatible archived results from their original graph and an available field; it is not a guarantee of identical historical output.

Package ownership

Generic graph construction and algorithms belong to dgraphs; use its current public help and object schemas. Examples include dgraphs::create.path.graph() and dgraphs::detect.graph.endpoints(). Adaptive extrema use detect.adaptive.extrema in gflow; dgraphs::detect.local.extrema() is a distinct fixed-radius method. Both packages share the dgraphs::vertices() generic. Layout packages such as grip own their layouts. Generic 3D rendering uses ivue::plot3D.plain(), ivue::plot3D.cont(), ivue::plot3D.groups(), ivue::layer3D.path(), and ivue::layer3D.edges().

Removed estimators

gflowx preserves archived response-smoothing and conditional-expectation estimators. Current geosmooth is a separate package, not an automatic replacement for all retired estimators. The one-dimensional magelo, mabilo, fit.pwlm and related families were extracted to malo; no gflow forwarders remain. Check the destination package's public help. PHATE, diffusion/potential pseudotime, quadratic-form geodesics and random-walk smoothing experiments are removed; no supported successor is claimed here. Generic weighted-p-value helpers and fassoc* tests have no public core adapter.

Association

Use lcor, lslope, and lslope.neighborhood for graph-local estimates. lcor.with.posterior summarizes supplied field draws and fits no posterior model. gfcor and gfassoc.membership accept successful canonical trajectory complexes with both directions and an explicit support stage, as well as archived basins_of_attraction inputs. Other canonical method families are rejected; these descriptive summaries do not replace permutation tests.