Variance Function Program

Variance function estimation for models proposed by W. Sadler in his variance function program ('VFP', <>). Here, the idea is to fit multiple variance functions to a data set and consequently assess which function reflects the relationship 'Var ~ Mean' best. For 'in-vitro diagnostic' ('IVD') assays modeling this relationship is of great importance when individual test-results are used for defining follow-up treatment of patients.


Reference manual

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1.4 by Andre Schuetzenmeister, a month ago

Browse source code at

Authors: Andre Schuetzenmeister [cre, aut] , Florian Dufey [aut] , Andrea Geistanger [ctb]

Documentation:   PDF Manual  

GPL (>= 2) license

Imports VCA, MASS, utils, stats, graphics, grDevices

Depends on gnm

Suggests RUnit, knitr, rmarkdown, prettydoc

Suggested by VCA.

See at CRAN