R remove characters in even rows of a specific column-CodePudding

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!

CodePudding user response：

You may try:

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

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

CodePudding user response：

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)