Dear Evguenia

What happens if you manually download the version you want and run install.packages() on that file? Your first attempt is on a .tar file not on the tar.gz file in the archive, not sure if that makes a difference.

Michael

On 16/05/2018 16:24, Evguenia Ignatova wrote:
Hello,

I am having difficulty installing the most recent compatible version of the “polycor" 
package (0.7-8), for R 3.2.1 on my Mac. Here is the package source page: 
https://cran.r-project.org/src/contrib/Archive/polycor/ 
<https://cran.r-project.org/src/contrib/Archive/polycor/>.

This version of R is necessary for the R Essentials for the IBM Statistical Package 
for Social Sciences (SPSS) extension. I found this thread on the problem 
(http://r.789695.n4.nabble.com/Installing-polycor-package-td4726101.html 
<http://r.789695.n4.nabble.com/Installing-polycor-package-td4726101.html>) but 
it does not offer much help as my SPSS version will not recognize the most recent 
versions of R.

The polycor package is not available in the repository of R 3.2.1. Here is the 
code I tried to install the package from the archive and the errors I received:

install.packages("/polycor_0.7-8.tar", repos=NULL, type="source")
Warning: invalid package ‘/polycor_0.7-8.tar’
Error: ERROR: no packages specified
Warning message:
In install.packages("/polycor_0.7-8.tar", repos = NULL, type = "source") :
   installation of package ‘/polycor_0.7-8.tar’ had non-zero exit status
install.packages("https://cran.r-project.org/src/contrib/Archive/polycor/polycor_0.7-8.tar.gz";,
 repos=NULL, type="source")
Error in download.file(p, destfile, method, mode = "wb", ...) :
   unsupported URL scheme

Any ideas for other alternatives would be greatly appreciated. Thank you for 
your time!

Best,
Evguenia
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--
Michael
http://www.dewey.myzen.co.uk/home.html

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