On Jan 8, 2009, at 11:22 AM, e-letter wrote:

Readers,

I have looked at various documents hosted on the web site; I couldn't
find anything on interpolation. So I started r and accessed the help
(help.start()). (by the way is it possible to configure r to open help
in opera instead of firefox?)

Look at options()$browser and reconfigure if necessary.

> options()$browser
[1] "/usr/bin/open"

or...
> options("browser")
$browser
[1] "/usr/bin/open

Which means that the default is set by my system configuration. I had earlier followed some advice offered me in a warning and changed the default pdf viewer
configuration, which should be an easy-to-rejigger example:

> options("eps_view"=  "/Applications/Preview.app")

--
David Winsemius

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