R help - Apr 2019 - Can one perform a dry run of a package installation?

Hi,

Is there a way to do a dry run of install.packages() or update.packages() to
simulate how an R environment would be modified by the installation or update of
a particular set of packages (with their dependencies)?

I am particularly interested in finding how dependencies would be recursively
updated to newer versions.

Thanks

On 09/04/2019 5:46 p.m., Sebastien Bihorel wrote:
> Hi,
> 
> Is there a way to do a dry run of install.packages() or update.packages()
to simulate how an R environment would be modified by the installation or update
of a particular set of packages (with their dependencies)?
> 
> I am particularly interested in finding how dependencies would be
recursively updated to newer versions.
Set the `lib` parameter of `install.packages` to an empty directory, and 
see what gets installed there.

Duncan Murdoch

Thanks

----- Original Message -----
From: "Duncan Murdoch" <murdoch.duncan at gmail.com>
To: "Sebastien Bihorel" <sebastien.bihorel at cognigencorp.com>,
r-help at r-project.org
Sent: Tuesday, April 9, 2019 7:29:50 PM
Subject: Re: [R] Can one perform a dry run of a package installation?

On 09/04/2019 5:46 p.m., Sebastien Bihorel wrote:
> Hi,
> 
> Is there a way to do a dry run of install.packages() or update.packages()
to simulate how an R environment would be modified by the installation or update
of a particular set of packages (with their dependencies)?
> 
> I am particularly interested in finding how dependencies would be
recursively updated to newer versions.
Set the `lib` parameter of `install.packages` to an empty directory, and 
see what gets installed there.

Duncan Murdoch