A good news is that the elliplot 1.1.1 is listed at CRAN. Now the procedure to install is simple for Windows users.

install.packages('elliplot')
library(elliplot)
ellipseplot(1:9)

The above is the simplest way to install, load and use the package.

Mac users may want to try the followings, because a binary package for Mac is not available at this moment.

install.packages('elliplot', type='source')

The delay of building binaries for Mac seems usual schedule of CRAN listing. Anyway, the job of CRAN people was faster than I expected.  That was good.

Unfortunately, there is a bad news come together with the good one. I changed the license to MIT for this package only. The only change between elliplot 1.1.0 and elliplot 1.1.1 is the license.

CRAN lists preferred licences at https://www.r-project.org/Licenses/.
Though there is an option to receive a license that is not listed at that page, this option is for a major license. They do not want to accept a minor license. So, I had to change my license to a major one, to list elliplot at CRAN.

That is not a matter.

I believe the MIT license is compatible with the cowares (paid4e) license,
and I will adopt the MIT only for packages contributing to CRAN.

I understand that CRAN needs plenty of legal words, while I like a license written by simple usual words.