[R] Relative subscripting
(Ted Harding)
Ted.Harding at nessie.mcc.ac.uk
Wed Dec 1 09:00:22 CET 2004
On 01-Dec-04 Uwe Ligges wrote:
> (Ted Harding) wrote:
>> [...]
>> Let
>>
>> N<-length(return)
>> new.var <- return[2:N]*marketcap[1:(N-1)]
>
> Ted, I aggree to all of your points, but we can simplify by negative
> indices (and hence circumvent your note 1):
> return[-1] * marketcap[-N]
>
> Uwe Ligges
Neat footwork, Uwe!
(Why didn;t I think of that? No, don't answer ... )
Ted.
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Date: 01-Dec-04 Time: 08:00:22
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