R Observatory: Metrics for psica version 1.0.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

psica

1.0.2

Decision Tree Analysis for Probabilistic Subgroup Identification with Multiple Treatments

0packages depend

2.7Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Oleg SysoevFirst published 2018-11-193 releasesCRAN page ↗

In the situation when multiple alternative treatments or interventions available, different population groups may respond differently to different treatments. This package implements a method that discovers the population subgroups in which a certain treatment has a better effect than the other alternative treatments. This is done by first estimating the treatment effect for a given treatment and its uncertainty by computing random forests, and the resulting model is summarized by a decision tree in which the probabilities that the given treatment is best for a given subgroup is shown in the corresponding terminal node of the tree.

Install

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

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

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

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-psica

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-psica

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-psica

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.9 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

8

Dependencies · direct

Check history

NOTE2026-05-11
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-05-10
11 OK · 1 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 38%
Return-value docs: 100%
References docs: 17%

Downloads

2.7K

CRAN downloads in the past year

Rank #14,799 · ~8/day · ~229/mo

Releases R versions

Daily download trend is not available in this view yet.

20630 days

71990 days

2.7K1 year

Compare downloads with other packages →

Also on115 r2u15 autocran

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (8)

RdpackgridgridBase randomForestrpartpartykit party BayesTree

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (4)

Krzysztof Bartoszek

no longer listed · 1.0.0 to 1.0.2

Lotta Ekstrom

no longer listed · 1.0.0 to 1.0.2

Katarina Ekholm Selling

no longer listed · 1.0.0 to 1.0.2

Oleg Sysoev

no longer listed · 1.0.0 to 1.0.2

Package Timeline

3 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.0.2Latest
2020-02-11 · current release · diff ↗
R
R 3.6.0 released · 2019-04-26
1.0.1
2018-11-29 · diff ↗
1.0.0
2018-11-19
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-11-19
Total releases: 3 / 8 yrs
License: GPL (>= 2) OSI
Download size: 17 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Machine Learning & Statistical Learning

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("psica")

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 psica version 1.0.2 [Data set]. HJJB, LLC. Data release v2026-08-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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