I use the latest version of Rstudio Version , but it start with Chinese I have changed Rconsole file's Language for messages item into En both in my DocumentChange From ( original entry) R_LIBS_USER=${R_LIBS_USER'~/R/x86_64pclinuxgnulibrary/40'} Change To ( your desired entry)3 The index is actually the data frame row names To change them, you can do something like rownames (dd) = 1dim (dd) 1 or rownames (dd) = 1nrow (dd)
How To Change A Value In A Matrix In R 55 Youtube