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Challenge 3: Find the Highest Achiever

Explore how to write an R function that reads data from math, English, and science CSV files and calculates the total scores to find the student with the highest combined marks. This lesson helps you practice vector manipulation and file handling by working on a real-world data analysis challenge.

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Problem Statement

Implement a function findTopper() that takes input from three subject files: math.csv, english.csv and science.csv, and find the index of the student that has scored the maximum total marks adding all three of its marks.

Input

Three files: math.csv, english.csv and science.csv

Output

Index of the highest scoring student

Sample Input

math.csv

Name,   Math
Andrew, 2.5
Mathew, 5.9
Dany,   1.9
Philip, 9.1

english.csv

Name,   English
Andrew, 8.2
Mathew, 2.5
Dany,   7.5
Philip, 9.3

science.csv

Name,   Science
Andrew, 5.2
Mathew, 9.5
Dany,   7.1
Philip, 1.9

Sample Output

4

Test Yourself

Write your code in the given area. If you get stuck, you can look at the solution.

R
findTopper <- function() 
{
    # Write your code here
}

In the next lesson, we give a brief overview of the solution to this problem.