Obtaing the position of max in a rollapply type function in r
Question
I'm trying to obtain the position of max value in a group, using rollapply function (zoo package).
What i'm trying to do is create the column "position.of.max.group.of.three":
What i tried to do:
1 answers
solution1
1 2023-01-25 22:47:00
It works:
df2$position.of.max.group.of.three = rollapplyr(df2$x, 3, which.max, fill = NA)
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