I am in need of using the packages: networkDynamic, ndtv and tsna of the R statnet suite. Nevertheless there are not available version for R 3.4.4. So, I need to migrate my R version to a specific previous version, as for example 3.4.3, in order to use these packages. Which command lines could I use for that? Thanks beforehand!
(ubuntu 18.04, Rstudio version 1.2.5033)