ddiv

0.1.1

Data Driven I-v Feature Extraction

1packages depend

3Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Megan M. MorbitzerFirst published 2018-09-282 releasesCRAN page ↗

The Data Driven I-V Feature Extraction is used to extract Current-Voltage (I-V) features from I-V curves. I-V curves indicate the relationship between current and voltage for a solar cell or Photovoltaic (PV) modules. The I-V features such as maximum power point (Pmp), shunt resistance (Rsh), series resistance (Rs),short circuit current (Isc), open circuit voltage (Voc), fill factor (FF), current at maximum power (Imp) and voltage at maximum power(Vmp) contain important information of the performance for PV modules. The traditional method uses the single diode model to model I-V curves and extract I-V features. This package does not use the diode model, but uses data-driven a method which select different linear parts of the I-V curves to extract I-V features. This method also uses a sampling method to calculate uncertainties when extracting I-V features. Also, because of the partially shaded array, "steps" occurs in I-V curves. The "Segmented Regression" method is used to identify steps in I-V curves. This material is based upon work supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under Solar Energy Technologies Office (SETO) Agreement Number DE-EE0007140. Further information can be found in the following paper. [1] Ma, X. et al, 2019. doi:10.1109/JPHOTOV.2019.2928477.

Install

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

install.packages("ddiv", 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-ddiv

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

# 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-ddiv

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

Health

CRAN checks

2NOTE11OK

Failing flavors

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

Slowest check: 1.6 min · r-oldrel-windows-x86_64

Check history

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

CRAN downloads in the past year

Rank #15,241 · ~8/day · ~248/mo

ddiv Releases R versions

Daily download trend is not available in this view yet.

26830 days

71490 days

3K1 year

Compare downloads with other packages →

Also on123 r2u38 autocran

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (3)

MASSsegmented qpdf

LinkingTo (0)

none

Suggests (4)

rmarkdown testthat knitr tidyr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

SunsVoc

Code & Tests

Datasets

People & History

People (12)

Maintainer (1)

Megan M. Morbitzer

Contributor, Maintainer · added in 0.1.1

Authors (4)

Roger H. French

Author, Copyright holder

Wei-Heng Huang

Author

Jiqi Liu

Author

Xuan Ma

Author

Contributors (8)

Megan M. Morbitzer

Contributor, Maintainer · added in 0.1.1

Contributor

Contributor

Contributor

Contributor

Contributor

Contributor

Contributor

Author, Copyright holder

Package Timeline

2 releases. 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
0.1.1Latest
2021-04-15 · current release · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.1.0
2018-09-28
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-09-28
Total releases: 2 / 8 yrs
License: GPL (>= 2) OSI
Download size: 650 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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