R rename duplicate col and rownames (subindexing)

Question

I would very much appreciate if a kind soul could tell me how to do this in R:

Given a squared matrix with duplicated columns and rows, such as

       1          


        

Answer 1

You could use ?make.unique or ?make.names:

v <- as.character(c(1, 1, 2, 2, 2, 2, 3))
make.unique(v)
# [1] "1"   "1.1" "2"   "2.1" "2.2" "2.3" "3"

(You have to combine this with rownames and colnames.)