Re: [R] Automatical download of needed packages from CRAN

From: Antonio, Fabio Di Narzo <antonio.fabio_at_gmail.com>
Date: Fri 29 Sep 2006 - 07:46:06 GMT

install.packages("foo", dep="Depends")

See online help. I think that the GUI version of install.packages automatically does that.

Antonio.

2006/9/29, Søren Højsgaard <Soren.Hojsgaard@agrsci.dk>:
> I write a package foo which requires a package bar (from CRAN) to work. So in the DESCRIPTION file I write Depends: bar. I would like it to be so that when one installs foo, then it is automatically checked whether bar is installed, and if not then bar is also installed at the same time. I remember having seen packages which do so, but I can not figure out the mechanism
> 'Depends: bar' in the DESCRIPTION file does not solve the problem. Can anyone help?
>
> A related question: How to check programmatically that a specific package is loaded?
>

> Best regards
> Søren
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Fri Sep 29 17:48:55 2006

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