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Provides tools for working with nonlinear least squares problems. It is intended to eventually supersede the nls() function in the R distribution. For example, nls() specifically does NOT deal with small or zero residual problems. Its GaussNewton method frequently stops with 'singular gradient' messages.
Package details 


Author  John C Nash [aut, cre], Duncan Murdoch [aut] 
Date of publication  20170620 20:24:01 
Maintainer  John C Nash <nashjc@uottawa.ca> 
License  GPL2 
Version  2017.6.18 
Package repository  View on RForge 
Installation 
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