M. C. A. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
Fifth Semester
Paper III R PROGRAMMING
2 90253-A
Time 3 Hours Max. Marks 60
SECTION — A
Answer any FIVE questions. 4 20 Marks)
each question carries 4 marks.
1. What is vector? How to create and naming the vectors?
2. State different factor levels with example.
3. Write a R program to merging two lists.
4. Describe logical and relational operators in R.
5. Illustrate implantation of recursion in R with suitable example.
6. Write about Using Lapply and Using Sapply in R.
7. How to create interface for importing data from CSV file?
8. Describe about how to perform Time series analysis using R.
SECTION — B
Answer ONE question from each unit. 10 40 Marks)
Each question carries 10 marks.
UNIT-I
9. Explain about how to create, naming and manipulating matrices with suitable
example.
Or
10. What is data frame? Illustrate sub setting of data frames with example.

UNIT-II
11. What is list? Discuss about different operations in Lists.
Or
12. Describe the syntax for declaring the while and for loop in R.
Write a program to demonstrate Looping over list.
UNIT-III
13. Write steps to loading package in R and discuss various mathematical functions R.
Or
14. Write a procedure to create Pie charts, Bar charts and histograms in R.
UNIT-IV
15. How to process XML and Binary files in R.
Or
16. Write a procedure to analyze linear regression and Chi — squared test of
independence with example program.
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