Changelog

Source: NEWS.md

tdarec 0.2.0

CRAN release: 2025-06-20

column modification - BREAKING CHANGE

Per issue #19, the persistent homology computation steps now modify data set list-columns in place, and these and the disaggregation steps assign roles as conventional {recipes} steps. Previously, users could ignore the presence of persistence diagram list-columns because they were assigned the new role "persistent homology". They must now be manually removed or their roles updated. Alternatively, and preferably, the data set list-columns can have their roles updated to something other than "predictor", as illustrated in the README. Users now also lose access to the data set list-column unless they explicitly duplicate it before computing persistent homology.

unit tests

The minor version incorporates a patch to debug the vectorization tests, which had failed to run due to a prefix in the names of the generated test files. Once corrected, the tent template functions step failed one test due to missing parameters; this has been corrected.

default scale sequences

Default scale sequences derived from persistence diagrams now use extrema calculated after infinite values are dropped. This accommodates an upgrade to {ripserr} that returns features with deaths at infinity.

tdarec 0.1.0

CRAN release: 2025-05-26

• Initial CRAN submission.