package dependency tree

Try this, noting that available.packages() returns a matrix whose columns
include "Depends" and "Suggests" and whose rownames are the package
names:

  

AP <- available.packages()
rownames(AP)[grep("quantreg", AP[, "Depends"])]
    

[1] "cobs"    "emplik"  "lss"     "rankreg" "rqmcmb2"
  

rownames(AP)[grep("quantreg", AP[, "Suggests"])]
    

[1] "apTreeshape" "diveMove"    "dyn"         "ggplot"      "gsubfn"
[6] "np"

On 1/2/07, roger koenker <rkoenker at uiuc.edu> wrote:
  

Is there a painless way to find the names of all packages on CRAN
that "Depend" on a specified package?


url:    www.econ.uiuc.edu/~roger            Roger Koenker
email    rkoenker at uiuc.edu            Department of Economics
vox:     217-333-4558                University of Illinois
fax:       217-244-6678                Champaign, IL 61820