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fiber 0.1.2

• Added bundle_set S7 class — a named collection of bundle objects for multi-subject or multi-session studies.
• Added is_bundle_set() predicate, format()/print()/length()/names()/[[/[ methods for bundle_set.
• Added as_bundle_set() generic with methods for bundle_set (identity) and bundle (wrap).
• Added bind_bundle_sets() to combine named bundle objects and/or bundle_set objects into a single bundle_set.
• Relaxed the streamline validator: @point_data entries no longer need to be numeric (any vector of the correct length is accepted); @streamline_data entries no longer need to be numeric either (any scalar is accepted). Non-numeric @point_data entries are dropped with a warning when reparametrize() is called, since they have no natural arc-length interpolant.
• Added missing \value documentation to the compute_hausdorff_distance() catch-all method (#CRAN).
• Replaced \dontrun{} with if (requireNamespace("dti", quietly = TRUE)) {} in the as_dwifiber() example (#CRAN).

fiber 0.1.1

• Improved documentation of S7 classes, generics and methods following the release of roxygen2 8.0.0.
• Removed redundant new_streamline() and new_bundle() constructors.
• Added coercers from and to the dwiFiber S4 class of the dti package.
• Refactored shape descriptors API.
• Rewrote pairwise Hausdorff distance matrix using C++ via the cpp11 package.
• Created the tractoverse GitHub organization and transferred fiber repository to it.

fiber 0.1.0

Breaking changes

• The package has been rebuilt from scratch around two S7 classes: streamline and bundle. The previous tibble-based streamline and list-based tract are removed.

New features

• new_streamline() / new_bundle() constructors for the S7 classes.
• bind_bundles() combines any mix of streamlines and bundles into a single bundle.
• reparametrize() resamples a streamline or every streamline in a bundle onto a uniform arc-length grid.
• get_euclidean_length(), get_curvilinear_length(), get_sinuosity() — geometric shape scalars.
• get_curvature(), get_torsion() — full curvature/torsion profiles or summary scalars ("mean", "sd", "max").
• get_hausdorff_distance() — symmetric Hausdorff distance between two streamlines.

Dependencies

• Runtime dependencies reduced to S7, rlang, and cli only.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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