itan

3.1.1

Item Analysis for Multiple Choice Tests

0packages depend

2.9Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Ariel ArmijoFirst published 2017-03-284 releasesCRAN page ↗GitHub ↗

Functions for analyzing multiple choice items. These analyses include the convertion of student response into binaty data (correct/incorrect), the computation of the number of corrected responses and grade for each subject, the calculation of item difficulty and discrimination, the computation of the frecuency and point-biserial correlation for each distractor and the graphical analysis of each item.

Install

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

install.packages("itan", 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("arielarmijo/itan")

Development version from arielarmijo/itan. 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-itan

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-itan

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-itan

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

Health

CRAN checks

13OK

Slowest check: 2.8 min · r-devel-linux-x86_64-fedora-gcc

Code health

Yes

Tests · ratio 0.54

not tracked

Coverage

100%

Documentation · exports

Yes

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.9K

CRAN downloads in the past year

Rank #15,865 · ~8/day · ~241/mo

Releases R versions

Daily download trend is not available in this view yet.

31630 days

71090 days

2.9K1 year

Compare downloads with other packages →

Also on107 r2u22 autocran

Repository

GitHub ↗ arielarmijo/itan

1Stars

1Forks

0Open issues

0Open PRs

1Releases

Stars over time

2023-06-23 · 12026-07-07 · 1

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (2)

ggplot2 reshape

LinkingTo (0)

none

Suggests (4)

rmarkdown knitr testthat readxl

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 1,088 (54%)Rd 574 (29%)Vignettes 311 (15%)Other 40 (2%)

Code characteristics

Cyclomatic complexity: 2.0 median / 5 max
Test cases: 16 / 0.54 per code line
Documented parameters: 100%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

17 10 exported

Complexity

2.2 avg / 5 max

Call network

17 nodes / 22 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (1)

Maintainer (1)

Ariel Armijo

Author, Maintainer

Authors (1)

Ariel Armijo

Author, Maintainer

Release timeline

4 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
3.1.1Latest
2022-02-10 · current release · diff ↗
2.0.1
2021-11-26 · diff ↗
2.0
2021-11-26 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.0
2017-03-28
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2017-03-28
Total releases: 4 / 9 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 2.10
Bundled data: 1.4 KB / 2 files
Download size: 2.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet