R Observatory
Search
install.packages("scan")
CRAN 30-day downloads, method
768−20.7% down on the 30 days before, the worse direction
Test coverage, method
35%of lines run by tests

A collection of procedures for analysing, visualising, and managing single-case data. Multi-phase and multi-baseline designs are supported.

Full description

A collection of procedures for analysing, visualising, and managing single-case data. Multi-phase and multi-baseline designs are supported. Analysing methods include regression models (multilevel, multivariate, bayesian), between case standardised mean difference, overlap indices ('PND', 'PEM', 'PAND', 'NAP', 'PET', 'tau-u', 'IRD', 'baseline corrected tau', 'CDC'), and randomization tests. Data preparation functions support outlier detection, handling missing values, scaling, and custom transformations. An export function helps to generate html, word, and latex tables in a publication friendly style. A shiny app allows to use scan in a graphical user interface. More details can be found in the online book 'Analyzing single-case data with R and scan', Juergen Wilbert (2026) <https://jazznbass.github.io/scan-Book/>.

Maintainer
Juergen Wilbert
Licence
GPL (>= 3)
Latest release
28 Apr 2026
First release
14 Oct 2016

Compare with another package

More details
Releases
22
Needs compilation
No
Needs R
>= 4.1.0
Config/testthat/edition
3
Date
2026-04-27
LazyData
true
RoxygenNote
7.3.3
Subjects (1) Method, Subjects
Cite

Package

Run in R for the authors' entry:

citation("scan")

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

R Observatory

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

APA
Balamuta, J. J. (2026). R Observatory: Metrics for scan version 0.68.1 [Data set]. HJJB, LLC. Data release v2026-10-28. https://doi.org/10.5281/zenodo.21843040
About

From data release v2026-10-28, which the citation names so these numbers can be found later.

All 13 check platforms pass.

  • r-devel-linux-x86_64-debian-clang

    The unreleased R on Linux, x86_64, debian-clang

    OK

    Version checked
    0.68.1
    Time taken
    214 s
  • r-devel-linux-x86_64-debian-gcc

    The unreleased R on Linux, x86_64, debian-gcc

    OK

    Version checked
    0.68.1
    Time taken
    148 s
  • r-devel-linux-x86_64-fedora-clang

    The unreleased R on Linux, x86_64, fedora-clang

    OK

    Version checked
    0.68.1
    Time taken
    171 s
  • r-devel-linux-x86_64-fedora-gcc

    The unreleased R on Linux, x86_64, fedora-gcc

    OK

    Version checked
    0.68.1
    Time taken
    137 s
  • r-devel-windows-x86_64

    The unreleased R on Windows, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    231 s
  • r-oldrel-macos-arm64

    The previous release of R on macOS, arm64

    OK

    Version checked
    0.68.1
    Time taken
    42 s
  • r-oldrel-macos-x86_64

    The previous release of R on macOS, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    174 s
  • r-oldrel-windows-x86_64

    The previous release of R on Windows, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    277 s
  • r-patched-linux-x86_64

    The patched release of R on Linux, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    195 s
  • r-release-linux-x86_64

    The current release of R on Linux, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    190 s
  • r-release-macos-arm64

    The current release of R on macOS, arm64

    OK

    Version checked
    0.68.1
    Time taken
    42 s
  • r-release-macos-x86_64

    The current release of R on macOS, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    166 s
  • r-release-windows-x86_64

    The current release of R on Windows, x86_64

    OK

    Version checked
    0.68.1
    Time taken
    212 s
  • 13 OK

Over time

No change since 4 Aug 2026

As a list (5)
ChangedWorst statusOKNotesWarningsErrors
4 Aug 2026OK13000
1 Aug 2026Note12100
9 Jun 2026OK13000
8 Jun 2026Error12001
10 Mar 2026OK14000

Since March 2026

Check results on CRAN

Total downloads in the last 30 days
775−21.3% down on the 30 days before, the worse directionIt is the sum of 3 channels: CRAN, r2u and autoCRAN.

CRAN rank

4,247 of 26,530

CRAN

768 downloads in the last 30 days

Rank
4,247 of 26,530
Change
−20.7% down on the 30 days before, the worse direction

It is in the total. Take it out

r2u

1 downloads in the last 30 days

Rank
19,986 of 30,526
Change
−80% down on the 30 days before, the worse direction

It is in the total. Take it out

autoCRAN

6 downloads in the last 30 days

Rank
8,234 of 29,212
Change
−45.5% down on the 30 days before, the worse direction

It is in the total. Take it out

Over time

Compare downloads

Needs
16
Dependent packages
1
Suggested by
0
Needs (16)
Installing it adds
120 packages, 99.0 MB of source
Of those, need compilation
60
Optional extras (4)
Dependent packages (1)
PackageTitleDownloads in 30 days
scplotPlot Function for Single-Case Data Frames614
Functions
232
Public exports
80
Lines of R code
13,844
Median complexity
3
Functions (232)
Size and composition

Lines by kind (20,578)

KindLinesShare
R code13,84467%
Tests5132%
Documentation6,22130%

Lines by language

LanguageLinesShare
R14,35770%
Rd6,22130%

Languages are counted from file extensions.

Files
270
R functions
232
Object systems
S3: 67 methods
Complexity
Median
3
Mean
6.19
Highest
112
Median lines per function
24.5
About complexity

Cyclomatic complexity counts the independent paths through a function: 1 is a straight line, higher is harder to test. R functions only.

Call graph figures
R functions
232
Calls
520
Unconnected
41
Groups
2
Growth (22 releases)
Total lines by release
3,632 on 14 Oct 201620,578 on 28 Apr 2026
Release changes

The tests ran and coverage was measured.

Lines run by tests
34.8%
Expressions run by tests
35.4%
Test cases
30
Exports named in tests
28.7%
Coverage by file (113)
Coverage run
Lines counted
6,482
Lines the tests ran
2,254
Tests passed
Yes
Measured with
covr 3.6.5 on R 4.6.1
Test suite
Has tests
Yes
Test frameworks
testthat
Test cases
30
Lines of tests
513
Test lines per line of code
0.04
Exports documented
98.8%
Arguments documented
96%
Return value documented
84.2%
Help pages with examples
68.9%
Examples run in checks
100%
Other documentation
README
Yes, 154 words
Release notes file
Yes
Help pages
74
Lines of documentation
6,221

37 datasets, 36 can be loaded by name

DatasetSizeColumns
Beretvas2008Single-case example data setslength 1
Borckardt2014Single-case example data setslength 1
Grosche2011Single-case example data setslength 3
Grosche2014Single-case example data setslength 4
GruenkeWilbert2014Single-case example data setslength 6
Huber2014Single-case example data setslength 4
Huitema2000Single-case example data setslength 1
Leidig2018Single-case example data setslength 35
Leidig2018_l2Single-case example data sets35 × 11class, case, gender, migration, first_language_german, SDQ_TOTAL and 5 more
Lenz2013Single-case example data setslength 1
Parker2007Single-case example data setslength 3
Parker2009Single-case example data setslength 1
More datasets (25)
DatasetSizeColumns
Parker2009bSingle-case example data setslength 1
Parker2011Single-case example data setslength 1
Parker2011bSingle-case example data setslength 1
SSDforR2017Single-case example data setslength 1
Tarlow2017Single-case example data setslength 3
Waddell2011Single-case example data setslength 1
byHeart2011Single-case example data setslength 11
exampleA1B1A2B2Single-case example data setslength 3
exampleA1B1A2B2_zvtSingle-case example data setslength 3
exampleABSingle-case example data setslength 3
exampleABABSingle-case example data setslength 3
exampleABCSingle-case example data setslength 3
exampleABC_150Single-case example data setslength 150
exampleABC_outlierSingle-case example data setslength 3
exampleAB_50Single-case example data setslength 50
exampleAB_50.l2Single-case example data sets50 × 3case, sex, age
exampleAB_addSingle-case example data setslength 1
exampleAB_decreasingSingle-case example data setslength 3
exampleAB_mpdSingle-case example data setslength 3
exampleAB_scoreSingle-case example data setslength 3
exampleAB_simpleSingle-case example data setslength 3
example_A24Single-case example data setslength 1
example_atdSingle-case example data setslength 3
example_strangerSingle-case example data setslength 4
case_nameslength 4

jazznbass / scan on github.com

Stars
6no change on 30 days ago
Forks
2
Open issues
3
Last commit
28 Apr 2026
Activity
Commits
1,020
Open pull requests
0
Tagged releases
14
Latest tagged release
v0.68.1, 28 Apr 2026
Issues closed in
5 days (median)
Pull requests closed in
0 days (median)
Pull requests merged
95%
Created
5 Aug 2019
Licence file reads as
GPL-3.0
Development practices (7)
KindFound
Docs sourcepkgdown
GitHub Pages site last deployed 2026-04-28
pkgdown site last built 2026-04-27, before release 0.68.1 (2026-04-28)
Reproducibility and dev environmentdata-raw/
CRAN release processcran-comments.md, revdep/, CRAN-SUBMISSION
Lint, format, editorRStudio project

Method, repository practices

Across jazznbass

R releases
  • On CRAN
  • Archived
  • Release

Archived and back

ArchivedBackCRAN's reasonKind
5 Feb 202122 Feb 2021issues were not corrected despite reminders. 'xtfrm()' on data framesChecks not fixed
VersionReleasedR
0.68.1 current28 Apr 20264.6.0
0.68.01 Apr 20264.5.3
0.67.011 Sep 20254.5.1
0.66.02 Sep 20254.5.1
0.65.113 Jul 20254.5.1
0.65.029 Jun 20254.5.1
0.64.019 Mar 20254.4.3
0.63.01 Mar 20254.4.3
Earlier versions (14)
VersionReleasedREvents
0.62.05 Feb 20254.4.2
0.61.01 Jul 20244.4.1
0.60.08 Aug 20234.3.1
0.59.03 Jun 20234.3.0
0.5824 May 20234.3.0
0.5724 Feb 20234.2.2
0.5616 Feb 20234.2.2
0.5529 Aug 20224.2.1
0.54.13 Apr 20224.1.3
0.5423 Mar 20224.1.3
0.5322 Sep 20214.1.1
0.5122 Feb 20214.0.4Back on CRAN 22 Feb 2021
0.405 Aug 20193.6.1Archived 5 Feb 2021
“issues were not corrected despite reminders. 'xtfrm()' on data frames”
0.2014 Oct 20163.3.1
Release notes (0.68.1)
  • Introduced rlang error and messaging system for more informative error messages and warnings.