Hi R,
I have doubt.
>x= c(4,5,6,3,2,4,5)
>acf(x,plot=F,lag.max=1)
Autocorrelations of series 'x', by lag
0 1
1.000 0.182
But if I actually calculate the autocorrelation at lag1 I get,
>cor(x[-1],x[-length(x)])
[1] 0.1921538
Even in excel I get 0.1921538 value. So, I want to know what the 'acf'
function is calculating here....
Thanks in advance,
Shubha Karanth
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