CODEWITHSUNDEEP
rvector
Foo
Foo

Reputation: 51

R Programming:How to calculate the area of a circle using an loop and function from a vector?

I have a numeric vector of 5 radii. I wrote the following function to calculate the area of a circle if one of the arguments in my function = 'AC'. I want to write a loop that using my function to calculate the area of a circle using radii in a numeric vector and print the results. How do I go about solving my problem in R?

Function:

area.volume =function(var1,R) {
    if (toupper(var1)=='AC') {
        pi*R^2
    } else if (toupper(var1)=='CC') {
        4/3*pi*R 
    } else if (toupper(var1)=='VS') {
        4*pi*R^2
    } else print("your method is not supported")
}

Vector of radii: c(20,10,4,34)

I would like my function to loop through the vector and calculate the are using the line:
if (toupper(var1)=='AC'){ pi*R^2 }.

Upvotes: 0

Views: 10847

Answers (1)

David Heckmann
David Heckmann

Reputation: 2939

your function already fulfills your spec through vectorization:

area.volume('AC', c(20,10,4,34))
[1] 1256.63706  314.15927   50.26548 3631.68111

Upvotes: 1

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