I am bit confused using the colnames or names command.
I applied a lef joing employing dplyr.
I assign the colnames as:
But when I print t1_f using the console or View(t1_f), I see that the last column is listed as:
I leave this information If It is any use:
class(t1_f)  "tbl_df" "tbl" "data.frame"
Thanks for your time and interest, community.