If I'm installing rpanel without a graphical display, I would like directions on how to install.

[tlevine]

rpanel installation requires a graphical display.

  install.packages('rpanel')                                                                                                                                   [293/999]
Installing package into ‘/home/tlevine/Rpackages’
(as ‘lib’ is unspecified)
trying URL 'http://cran.mirrors.hoobly.com/src/contrib/rpanel_1.1-2.tar.gz'
Content type 'application/x-gzip' length 702555 bytes (686 Kb)
opened URL
==================================================
downloaded 686 Kb

Loading required package: testthat
Loading project configuration
* installing *source* package ‘rpanel’ ...
** package ‘rpanel’ successfully unpacked and MD5 sums checked
** R
** data
*** moving datasets to lazyload DB
** demo
** inst
** preparing package for lazy loading
Warning in fun(libname, pkgname) :
  no DISPLAY variable so Tk is not available
Calls: <Anonymous> ... tryCatch -> tryCatchList -> tryCatchOne -> doTryCatch -> fun
Error in structure(.External(.C_dotTcl, ...), class = "tclObj") : 
  [tcl] no display name and no $DISPLAY environment variable.

Error : unable to load R code in package ‘rpanel’
ERROR: lazy loading failed for package ‘rpanel’
* removing ‘/home/tlevine/Rpackages/rpanel’

The downloaded source packages are in
        ‘/tmp/RtmpHRXkd8/downloaded_packages’
Warning message:
In install.packages("rpanel") :
  installation of package ‘rpanel’ had non-zero exit status

[tlevine]

Here are instructions on how to set up a virtual framebuffer. http://thomaslevine.com/!/selenium/

[abelsonlive]

hmm. I don't understand this one. Does this have something to do with the installation of seewave?