[R] extraction of element

[mmstat at comcast.net]

Hello, 

I want only the value of Beta so the statement  Power<-1-Beta[1] works right. 

How to do?  See code below 

Beta <- integrate(dnorm,mean=0,sd=1, 2.3552,Inf) 
Power<- 1-Beta[1] 

Sincerely, 
Mary A. Marion