I am trying to visualize the top 3 or n bars in R in an order one after another. I have followed

data

df <- structure(list(values_1 = c("C123", "B323", "C123", "R333", "R334", 
"N123", "U322", "C123", "U322", "R444")), class = "data.frame",
 row.names = c("1", 
"2", "3", "4", "5", "6", "7", "8", "9", "10"))