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LactCurveModels: Lactation Curve Model Fitting for Dairy Animals

Fits up to 20 nonlinear lactation curve models to dairy animal milk yield data. Models fitted include exponential, polynomial, mixed logarithmic, inverse polynomial, and sigmoid families published between 1923 and 2000. Supports batch processing of multiple animals from a single CSV file, with flexible selection of animals and models. Produces per-animal parameter tables, goodness-of-fit metrics including R-squared (R2), Root Mean Square Error (RMSE), Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), and a serial autocorrelation statistic, 15 diagnostic figures, and combined cross-animal comparison outputs. References: <doi:10.1085/jgp.5.4.441>, <doi:10.1038/216164a0>, <doi:10.1016/0301-6226(87)90003-0>, <doi:10.4141/cjas87-067>, <doi:10.3168/jds.S0022-0302(00)75136-8>.

Version: 0.1.5
Imports: stats, utils, grDevices, graphics
Suggests: knitr, rmarkdown, spelling
Published: 2026-03-29
DOI: 10.32614/CRAN.package.LactCurveModels
Author: Raja TV [aut, cre], Lalremruati PC [aut], Priyadharshini P [aut], Nidhishree NS [aut], Dheeraj Gurjar [aut], Rani Alex [aut], Vikas Vohra [aut]
Maintainer: Raja TV <venkatesanraja09 at gmail.com>
BugReports: https://github.com/venkatesanraja/LactCurveModels/issues
License: GPL-3
URL: https://github.com/venkatesanraja/LactCurveModels
NeedsCompilation: no
Language: en-GB
Materials: README
CRAN checks: LactCurveModels results

Documentation:

Reference manual: LactCurveModels.html , LactCurveModels.pdf
Vignettes: Getting Started with LactCurveModels (source, R code)

Downloads:

Package source: LactCurveModels_0.1.5.tar.gz
Windows binaries: r-devel: LactCurveModels_0.1.5.zip, r-release: LactCurveModels_0.1.5.zip, r-oldrel: LactCurveModels_0.1.5.zip
macOS binaries: r-release (arm64): LactCurveModels_0.1.5.tgz, r-oldrel (arm64): not available, r-release (x86_64): LactCurveModels_0.1.5.tgz, r-oldrel (x86_64): LactCurveModels_0.1.5.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=LactCurveModels to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.