R data frame rank by groups (group by rank) with package dplyr

Question

I have a data frame \'test\' that look like this:

    session_id  seller_feedback_score
1   1   282470
2   1   275258
3   1   275258
4   1   275258
5   1   3         


        

Answer 1

One way you can do this is :

dataset<-dataset%>%arrange(ID, DateTime,Index)
dataset$Rank<-c(0,ID)[-(nrow(dataset)+1)] == ID
dataset<- dataset%>%group_by(ID)%>%mutate(Rank = cumsum(Rank))

Had the same issue!