[R] product of vector elements

Chuck Cleland ccleland at optonline.net
Sun Jan 13 01:49:29 CET 2008


On 1/12/2008 7:38 PM, Gerard Smits wrote:
> All,
> 
> I would like to find a simper method that I now have to find the 
> product of all elements  in a vector:
> 
> #get product of vector elements: (1,2,3,4,5)
> vec.product <- exp(sum(log(c(1,2,3,4,5))))
> 
> I have not found a vector product function, if one has been written.

 > cumprod(1:5)
[1]   1   2   6  24 120

?cumprod

> Thanks,
> 
> Gerard 
> 	[[alternative HTML version deleted]]
> 
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Chuck Cleland, Ph.D.
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