R Observatory: Metrics for qPCRhelper version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

qPCRhelper

0.1.0Package record

qPCR Ct Values to Expression Values

0packages depend

2.5Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Wilson Jr. AalaCRAN page ↗

Computes normalized cycle threshold (Ct) values (delta Ct) from raw quantitative polymerase chain reaction (qPCR) Ct values and conducts test of significance using t.test(). Plots expression values based from log2(2^(-1*delta delta Ct)) across groups per gene of interest. Methods for calculation of delta delta Ct and relative expression (2^(-1*delta delta Ct)) values are described in: Livak & Schmittgen, (2001) doi:10.1006/meth.2001.1262.

Changes in 0.1.0

Notes:

I hope everyone who comes across this tool will find value in it! Enjoy!

s

From NEWS in the release

Install

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

install.packages("qPCRhelper", 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-qpcrhelper

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-qPCRhelper

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-qPCRhelper

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Wilson Jr. Aala <s98107020@gs.ncku.edu.tw>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = c("Wilson", "Jr."),
                    family = "Aala",
                    role = c("aut", "cre"),
                    email = "s98107020@gs.ncku.edu.tw")
as necessary.

CRAN check page ↗

Slowest check: 1.4 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTE2026-06-09
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-08
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMENoVignettesYes · 1 · dynamicNEWSYes · 33% structured · mentions 0.1.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 1
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 0%

Vignettes (1)

qPCRhelper HTML

How these are measured

Downloads

2.5K

CRAN downloads in the past year

Rank #20,352 · ~7/day · ~208/mo

Releases R versions

Daily download trend is not available in this view yet.

25330 days

64590 days

2.5K1 year

Compare downloads with other packages →

Also on66 r2u1 autocran

How downloads are counted

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing qPCRhelper adds 68 packages (33 with compiled code, 64 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, doBy 4.3 MB.

Depends (0)

none

Imports (5)

dplyr rstatix ggpubr ggplot2 magrittr

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (1)

Wilson Jr. Aala

Maintainer since 0.1.0 (2023)

Releases (1)

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
0.1.0Latest
record
2023-02-23 · current release
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2023-02-23
Total releases: 1 / 3 yrs
License: GPL-3 OSI
Download size: 8.2 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("qPCRhelper")

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 qPCRhelper version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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