Write an R programme to add a new column in a given data frame.
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Write an R programme to add a new column in a given data frame.
data1 =data.frame( subject = c("C++", "PYTHON", "IOT", "DBMS", "DS"), mark= c(78,67,89,98,88) ) print(data1) #add new column to existing one data1<-data.frame(grade=c("B+","B", "A","A+","A"),data1) data1