[R] efficiency with "%*%"

dimitrijoe@ipea.gov.br dimitrijoe at ipea.gov.br
Thu Jan 26 14:19:22 CET 2006


Hi,

x and y are (numeric) vectors. I wonder if one of the following is more
efficient than the other:

x%*%y

or

sum(x*y)
?

Thanks,
Dimitri Szerman




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