Alpha 125.5 0 Beta 235.6 1 Beta 212.03 0 Beta 211.30 0 Alpha 265.46 1 File Name – Dataframe.csv Which of the following commands will correctly read the above csv file with 5 rows in a dataframe? A) csv(‘Dataframe.csv’) B) csv(‘Dataframe.csv’,header=TRUE) C) dataframe(‘Dataframe.csv’) D) csv2(‘Dataframe.csv’,header=FALSE,sep=’,’)

Write an R program for following operations:- a) First make two separate files (word, excel) and then perform import and export operations on it.

Write an R programme to add a new column in a given data frame.

Write an R program to change a column name of a given data frame.

Write an R program to create a simple bar plot of five subject’s marks.