Calculation routines based on the FOCUS Kinetics Report (2006, 2014). Includes a function for conveniently defining differential equation models, model solution based on eigenvalues if possible or using numerical solvers. If a C compiler (on windows: 'Rtools') is installed, differential equation models are solved using automatically generated C functions. Heteroscedasticity can be taken into account using variance by variable or twocomponent error models as described by Ranke and Meinecke (2018) <doi:10.3390/environments6120124>. Hierarchical degradation models can be fitted using nonlinear mixedeffects model packages as a back end as described by Ranke et al. (2021) <doi:10.3390/environments8080071>. Please note that no warranty is implied for correctness of results or fitness for a particular purpose.
Package details 


Author  Johannes Ranke [aut, cre, cph] (<https://orcid.org/0000000343716538>), Katrin Lindenberger [ctb] (contributed to mkinresplot()), RenĂ© Lehmann [ctb] (ilr() and invilr()), Eurofins Regulatory AG [cph] (copyright for some of the contributions of JR 20122014) 
Maintainer  Johannes Ranke <johannes.ranke@jrwb.de> 
License  GPL 
Version  1.2.6 
URL  https://pkgdown.jrwb.de/mkin/ 
Package repository  View on CRAN 
Installation 
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