stepp

3.2.7

Subpopulation Treatment Effect Pattern Plot (STEPP)

0packages depend

7.5Kdownloads / year

60.4%test coverage

11/13checks pass

Overview

About

Maintained by Wai-ki YipFirst published 2012-10-297 releasesCRAN page ↗

A method to explore the treatment-covariate interactions in survival or generalized linear model (GLM) for continuous, binomial and count data arising from two or more treatment arms of a clinical trial. A permutation distribution approach to inference is implemented, based on permuting the covariate values within each treatment group.

Install

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

install.packages("stepp", 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-stepp

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-stepp

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-stepp

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: 5.4 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.07

60.4%

Coverage · measured lines

86%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-06-09
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 93%
Documented parameters: 100%
Return-value docs: 58%
References docs: 39%

Downloads

7.5K

CRAN downloads in the past year

Rank #5,302 · ~20/day · ~623/mo

Releases R versions

Daily download trend is not available in this view yet.

42730 days

1.8K90 days

7.5K1 year

Compare downloads with other packages →

Also on393 r2u13 autocran89 c2d4u

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (4)

methodscarsurvivalsplines

Imports (2)

rstudioapi scales

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 5,000 (64%)Rd 2,474 (31%)Fortran 370 (5%)C 20 (0%)

Code characteristics

Object systems

S4 class6S4 generic11S4 method31

Cyclomatic complexity: 2.0 median / 90 max

Test coverage

Line coverage

60%

Expression

61.9%

Tests / Examples

60.4% / 61% ex

Functions

44 16 exported

Complexity

8.2 avg / 90 max

Call network

44 nodes / 12 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

44 functions

Function	Cyclo	Coverage
analyze.CumInc.stepp exp	1	0%
analyze.KM.stepp exp	1	0%
stepp exp	3	0%
stepp.CI exp	1	0%
stepp.KM exp	1	0%
stepp.edge exp	2	0%

Datasets

Bundled datasets · 5

Name	Class	Rows × Cols	Also ships in
aspirin	data.frame	1,121 × 5	–
balance_example	data.frame	5,000 × 1	–
bigCI	data.frame	2,685 × 4	–
bigKM	data.frame	2,685 × 4	–
simdataKM	data.frame	1,000 × 4	–

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (11)

Marco Bonetti