R Array Operations

Hi All,
See the Array operations

> a = c(1, 2, 5, 4)
> b = c(1,1, 4, 8)
Then, if we multiply a by 5, we would get a vector with each of its elements multiplied by 5.
> 5 * a
[1]  5 10 25 20 
 
The same can be done with other arithmetic operators.
 
> a + b 

> a - b

> a * b

> a / b 

Recycling Rule

If two arrrays are of unequal length, the shorter one will be recycled in order to match the longer vector.

> w = c(10, 20, 30)
> v = c(1, 2, 3, 4, 5, 6, 7, 8, 10)
> w + v
[1] 11 22 33 14 25 36 17 28 40 
 
 

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