R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'optimx'

optimx::AddPracmaNM2optimx |  | Adding pracmanm to optimr() in package optimx | PDF | source |
optimx::ExplainGradMinR |  | Explaining Gradient Minimizers in R | PDF | source |
optimx::Extend-optimx |  | Using and extending the optimx package | PDF | source |
optimx::Intro-to-optimx |  | Intro to optimx | PDF | source |
optimx::Rvmmin |  | Rvmmin - an R implementation of the Fletcher(1970) variable metric method with bounds and masks | PDF | source |
optimx::SNewton |  | SNewton: safeguarded Newton methods for function minimization | PDF | source |

## Other files in the doc directory

| Extend-optimx20171215.Rmd |
| examples/ |
| legacy-demo/ |
| ncg2204.R |
| ncgqs2204.R |
| optcontrol.xls |
| testefnegr.R |
| vignette-source/ |