[R] Repeated failures to install "caret" package (of Max Kuhn)

John Kane jrkrideau at inbox.com
Sat Apr 4 17:11:08 CEST 2015

Try installing from somewhere outside of RStudio or reboot and retry in RStudio.  I find that if RStudio is open for a long time I occasionally get some weird (buggy?) results but I cannot reproduce to send in an bug report.

Load R  and from the command line or Windows RGui try installing.  As a test I just installed it successully with the command "install.packages("caret")" executed in R (using gedit with its 
R-plug-in) and running Ubuntu 14.04

For future reference:

John Kane
Kingston ON Canada

> -----Original Message-----
> From: wyllys at ischool.utexas.edu
> Sent: Fri, 03 Apr 2015 16:07:57 -0500
> To: r-help at r-project.org
> Subject: [R] Repeated failures to install "caret" package (of Max Kuhn)
> For an edx course, MIT's "The Analtics Edge", I need to install the
> "caret" package that was originated and is maintained by Dr. Max Kuhn of
> Pfizer. So far, every effort I've made to try to
> install.packages("caret") has failed.  (I'm using R v. 3.1.3 and RStudio
> v. 0.98.1103 in LinuxMint 17.1)
> Here are some of the things I've tried unsuccessfully:
> install.packages("caret", repos=c("http://rstudio.org/_packages",
> "http://cran.rstudio.com"))
> install.packages("caret", dependencies=TRUE)
> install.packages("caret", repos=c("http://rstudio.org/_packages",
> "http://cran.rstudio.com"), dependencies=TRUE)
> install.packages("caret", dependencies = c("Depends", "Suggests"))
> install.packages("caret", repos="http://cran.rstudio.com/")
> I've changed my CRAN mirror from UCLA to Revolution Analytics in Dallas,
> and tried the above installs again, unsuccessfully.
> I've succeeded in individually installing a number of packages on which
> "caret" appears to be dependent.  Specifically, I've been able to
> install  "nloptr", "minqa", "Rcpp", "reshape2", "stringr", and
> "scales".  But I've had no success with trying to do individual installs
> of "BradleyTerry2", "car", "lme4", "quantreg", and "RcppEigen".
> Any suggestions will be very gratefully received (and tried out quickly).
> Thanks in advance.
> Ron Wyllys
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