[R] Use of ellipses ... in argument list of optim(), integrate(), etc.

Hi, I have noticed that there is a change in the use of ellipses or . in R versions 2.6.1 and later. In versions 2.5.1 and earlier, the . were always at the end of the argument list, but in 2.6.1 they are placed after the main arguments and before method control arguments. This results in

Re: [R] Use of ellipses ... in argument list of optim(), integrate(), etc.

From the NEWS file: CHANGES IN R VERSION 2.6.0 SIGNIFICANT USER-VISIBLE CHANGES o integrate(), nlm(), nlminb(), optim(), optimize() and uniroot() now have '...' much earlier in their argument list. This reduces the chances of unintentional partial matching but means that the later

Re: [R] Use of ellipses ... in argument list of optim(), integrate(), etc.

Thank you, Vince. Best, Ravi. --- Ravi Varadhan, Ph.D. Assistant Professor, The Center on Aging and Health Division of Geriatric Medicine and Gerontology Johns Hopkins University Ph: (410) 502-2619 Fax: (410)

Re: [R] Use of ellipses ... in argument list of optim(), integrate(), etc.

Ravi Varadhan wrote: Hi, I have noticed that there is a change in the use of ellipses or . in R versions 2.6.1 and later. In versions 2.5.1 and earlier, the . were always at the end of the argument list, but in 2.6.1 they are placed after the main arguments and before method control

Re: [R] Use of ellipses ... in argument list of optim(), integrate(), etc.

There is an entry in the NEWS file for 2.6.0: CHANGES IN R VERSION 2.6.0 SIGNIFICANT USER-VISIBLE CHANGES o integrate(), nlm(), nlminb(), optim(), optimize() and uniroot() now have '...' much earlier in their argument list. This reduces the chances of

Re: [R] Use of ellipses ... in argument list of optim(), integrate(), etc.

Thanks to Tony Plate, Vince Goulet, and Prof. Brian Ripley (I apologize for not posting this to R-devel). It is nice to know that there can be no unintended side-effects of this new ellipsical convention, other than the inconvenience of having to provide complete names of arguments after the