[R] p value for joint probability
Peter Ehlers
ehlers at ucalgary.ca
Mon Jan 31 23:13:22 CET 2011
On 2011-01-31 12:42, moleps wrote:
> Dear all,
>
> Given
>
> rr<-data.frame(r1<-rnorm(1000,10,5),r2<-rnorm(1000,220,5))
>
>
> How can I add a column (rr$p) for the joint probability of each r1& r2 pair?
If you take the values in each pair to be observations
from two independent Normal distributions, it's easy:
The "joint probability" of those values is zero.
But I suspect you mean something else by "joint probability".
Can you elaborate?
Peter Ehlers
> I know how to add the column.. I just dont know how to compute the p value for joint probabilities given the two samples.
>
>
> //M
>
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