How to merge 3 dataframes by id in R

@KumarP wrote:

I have 3 dataframes(contacts, bookings,tickets).

merged.data <- merge(contacts, bookings,tickets, by=c(“contact_id”, “booking_id”,“ticket_id”))

While merging data frame ,getting below error message.

Error in fix.by(by.x, x) :
‘by’ must specify one or more columns as numbers, names or logical

Posts: 2

Participants: 1

Read full topic