TACT: Taxonomic Addition for Complete Trees
TACT is a tool for stochastic polytomy resolution, and generates complete phylogenies from incomplete ones. It uses birth-death-sampling estimators across an ultrametric phylogeny to generate branching times for unsampled taxa, using taxonomic information to compatibly place these unsampled taxa onto a backbone phylogeny.
Getting started with TACT
Citation
If you use TACT in your research, please cite:
- Chang, J., Rabosky, D. L., & Alfaro, M. E. (2019). Estimating diversification rates on incompletely-sampled phylogenies: theoretical concerns and practical solutions. Systematic Biology. doi:10.1093/sysbio/syz081
TACT builds on foundational work in stochastic polytomy resolution, particularly:
-
Thomas, G. H., Hartmann, K., Jetz, W., Joy, J. B., Mimoto, A., & Mooers, A. O. (2013). PASTIS: an R package to facilitate phylogenetic assembly with soft taxonomic inferences. Methods in Ecology and Evolution, 4(11), 1011–1017. doi:10.1111/2041-210x.12117
-
Cusimano, N., Stadler, T., & Renner, S. S. (2012). A New Method for Handling Missing Species in Diversification Analysis Applicable to Randomly or Nonrandomly Sampled Phylogenies. Systematic Biology, 61(5), 785–792. doi:10.1093/sysbio/sys031
Sponsorship
Please consider sponsoring the ongoing maintenance of TACT via GitHub Sponsors.
Initial development was supported by a National Science Foundation Doctoral Dissertation Improvement Grant (DEB-1601830).
Metadata
Release files for tact 0.8.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| tact-0.8.0.tar.gz | 43.7 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| tact-0.8.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 72.4 kB
Release files / tact-0.8.0.tar.gz
| Download URL | tact-0.8.0.tar.gz |
|---|---|
| Size | 43.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
42c47b7a54f30b67e15aad9daac7921ad6e505790ba55b3dfdfa5348f8776ef5
|
|
BLAKE2b-256 checksum How to use checksums |
b5f91c105ae872d7201f349bd0439d971ed284d07bcca1be43ff27509a78fa45
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Jan 17, 2026.
Transparency logRelease files / tact-0.8.0-py3-none-any.whl
| Download URL | tact-0.8.0-py3-none-any.whl |
|---|---|
| Size | 28.7 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
d2497c3cce93b2e3fe08eac4f1030b04ba9e98d9f69ebedd8c3c8362d8573c4b
|
|
BLAKE2b-256 checksum How to use checksums |
9e7102171f000d9752142d46c967396092414fd83536fa35e6915f64f1f09c6a
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Jan 17, 2026.
Transparency log