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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 as its Gauss-Newton method frequently stops with 'singular gradient' messages. 'nlsr' is based on the now-deprecated package 'nlmrt', and has refactored functions and R-language symbolic derivative features.
Package details |
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Author | John C Nash [aut, cre], Duncan Murdoch [aut] |
Maintainer | John C Nash <nashjc@uottawa.ca> |
License | GPL-2 |
Version | 2021.8.19 |
Package repository | View on R-Forge |
Installation |
Install the latest version of this package by entering the following in R:
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