I wrote an internal R package and have saved it as a zipped source package. If a user has the most up-to-date version R version 3.3.0 (2016-05-03) that the package was built on, it runs fine. But if they have not updated yet, it does not install:
> list.files(pattern="tar")
[1] "rgridclus_0.2.0.tar.gz"
> install.packages("rgridclus", type="source")
Installing package into ‘C:/Users/plafortune/Documents/R/win-library/3.2’
(as ‘lib’ is unspecified)
Warning message:
package ‘rgridclus’ is not available (for R version 3.2.4 Revised)
CRAN packages have a backwards compatibility process that allows newer package versions to be installed and used on old R versions with a warning:
> library(psych)
Warning message:
package ‘psych’ was built under R version 3.2.5
I will encourage the users to keep up with the newest R installs, but can I add this functionality in a non-cran package?
