[R] How to get the names of all the packages that depend on a give package?

[Gabor Grothendieck]

On Wed, Apr 13, 2011 at 11:57 AM, thmsfuller066 at gmail.com
<thmsfuller066 at gmail.com> wrote:
> Dear All,
>
> I want to check what packages depends on a given package. For example,
> glmnet depends on Matrix. I want get the names of all the packages
> that depend on Matrix on CRAN. Is there a way to do so? Thanks!
>
>> library(glmnet)
> Loading required package: Matrix
> Loading required package: lattice
>

Look at the bottom of this page:
http://cran.r-project.org/web/packages/Matrix/index.html

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