What happens when you divide 2 vectors of unequal length in R?
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What happens when you divide 2 vectors of unequal length in R?

What happens when you divide 2 vectors of unequal length in R?

This recipe explains what happens when you divide 2 vectors of unequal length in R

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Recipe Objective

What happens when you divide 2 vectors of unequal length in R? When two vectors of unequal length are divided, the vector with shorter length will be recycled in such a way that it will match the length of the longer vector and then perform the division operation. This recycling of the shorter vector is known as the recycling rule. This recipe performs division of unequal vectors length.

Step 1- Define 2 vectors

Two vectors (for e.g: numeric) of unequal lengths are defined, here the length of vector b is a divide of the length of vector b.

a <- c(1:10) b <- c(1:5) print(length(a)) print(length(b)) print(a) print(b)

The shorter vector b gets recycled and forms a vector of length (1:10) in order to match the length of vector a..

Step 2 - Divide the two vectors

print(a/b)
"Output of the code is"
 [1] 1.000000 1.000000 1.000000 1.000000 1.000000 6.000000 3.500000 2.666667
 [9] 2.250000 2.000000 

Two vectors (for e.g numeric) of unequal lengths are defined, here the length of vector b is not a multiple of the length of vector b

x <- c(1:10) y <- c(1:4) print(length(x)) print(length(y)) print(x) print(y)

A warning message is displayed when the length of the two vectors are not in proportion

print(x/y)
"Output of the code is"
Warning message in x/y:
“longer object length is not a multiple of shorter object length”
 [1] 1.000000 1.000000 1.000000 1.000000 5.000000 3.000000 2.333333 2.000000
 [9] 9.000000 5.000000

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