R Observatory: Metrics for PTT version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

PTT

1.0.1Package record

Pólya Tree Type Models

0packages depend

696downloads / year

71.6%test coverage

13/13flavors OK

Overview

About

Maintained by Li MaCRAN page ↗GitHub ↗Issues ↗

Fits Bayesian nonparametric models based on Pólya tree processes, including adaptive Pólya trees, Markov adaptive Pólya trees, optional Pólya trees, and their conditional-density counterparts. Methods are described in Ma (2017) doi:10.1214/16-BA1021, Ma (2017) doi:10.1214/17-EJS1254, and Wong and Ma (2010) doi:10.1214/09-AOS755.

Changes in 1.0.1

Correctness

Fixes undefined behavior in conditional hierarchical MAP partition output caused by using an unsigned counter with -1 as its initial sentinel.
Uses 64-bit node offsets to avoid truncation when indexing larger trees.
Rejects predictor/response dimension and shrinkage-state configurations that exceed the capacity of the internal partition representation.

Validation

Adds regression checks for conditional partition boundaries and supported input capacities.
Audits the remaining bit shifts and verifies the package examples, tests, and demos with undefined-behavior and address sanitizers.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("PTT", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("MaStatLab/PTT")

Development version from MaStatLab/PTT. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ptt

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-PTT

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-PTT

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.3 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK8 OK2026-07-23

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.1

READMEYes · 365 wordsVignettesNoNEWSYes · 100% structured · mentions 1.0.1Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 7 (1 internal)includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 56%
Return-value docs: 100%
Help pages citing references: 43%

Also includes 7 demo scripts (run with demo())

How these are measured

Downloads

696

CRAN downloads in the past year

Rank #24,022 · ~2/day · ~58/mo

Releases R versions

Daily download trend is not available in this view yet.

17030 days

53190 days

6961 year

Compare downloads with other packages →

Also on41 r2u3 autocran

How downloads are counted

Repository

mastatlab/ptt ↗Organization: MaStatLab

1Stars

3Forks

0Open issues

0Open PRs

0Releases

74Commits

5Commit identities

74 commits · Last activity 2026-07-22

Responsiveness

How these are sampled

PRs merged (all time): 67%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/mastatlab/ptt on 2026-10-21.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing PTT adds 2 packages (2 with compiled code, 2.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB.

Depends (0)

none

Imports (1)

Rcpp

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Li Ma

Author, Maintainer since 1.0 (2026)

Releases (2)

Pick two releases to compare their code metrics.

1.0.1Latest
record
2026-07-23 · current release · diff ↗
1.0
record
2026-07-22
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-07-22
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Download size: 37 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("PTT")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.1214/16-ba1021, 10.1214/17-ejs1254, 10.1214/09-aos755.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for PTT version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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