[R] nstall.packages

[Uwe Ligges]

Han Lai wrote:
> 
> Hi!
> 
> I am new to R.  I want to install "packages" from Package Sources in the
> web.  I follow the instruction and use the "install.packages" but no
> luck.
> 
> Here is what I did:
> 
> > install.packages(gss,"C:/R/rw1021/library", CRAN = options("CRAN"),
>                             contriburl =
> contrib.url("http://cran.r-project.org"),
>                             method = "auto", available = NULL,
>                             destdir = "C:/R/rw1021/library")
> The error message is:
> 
> 'lynx' is not recognized as an internal or external command,
>        operable program or batch file.
> Error in download.file(url = paste(contriburl, "PACKAGES", sep = "/"),
> :
>         No download method found
> In addition: Warning messages:
> 1: wget not found
> 2: cmd execution failed with error code 1 in: shell("lynx -help",
> invisible = TRUE)
> 
> Could anybody show mw the correct script?


The use of install.packages() is OK. But you are on windows, and you
don't have installed neither lynx nor wget, I think. From
?install.packages:

   Note
   wget.exe is available from
http://www.stats.ox.ac.uk/pub/Rtools/wget.zip.

Uwe

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