R remove characters in even rows of a specific column

Question

I'm trying to remove the characters in even rows of a specific column.

My dataset looks like this:

name	value
apple	3
apple	(0,1)
banana	6
banana	(-2,6)
cherry	3
cherry	(4,6)

And this is what I'm expecting:

name	value
apple	3
	(0,1)
banana	6
	(-2,6)
cherry	3
	(4,6)

Thank you!

Answer 1

You may try:

df$name[!c(TRUE, FALSE)] <- ""

This will assign empty string to even rows of the name column.

Answer 2

If the goal is to remove all the name values which are repeated, you may use duplicated .

df$name[duplicated(df$name)] <- ''
df

#    name  value
#1  apple      3
#2         (0,1)
#3 banana      6
#4        (-2,6)
#5 cherry      3
#6         (4,6)