[R] saving only part of a computation in integrate

Erik Iverson eiverson at NMDP.ORG
Thu Jul 30 19:03:33 CEST 2009


See ?str

> str(Beta)
List of 5
 $ value       : num 0.99
 $ abs.error   : num 4.22e-06
 $ subdivisions: int 4
 $ message     : chr "OK"
 $ call        : language integrate(f = dnorm, lower = -Inf, upper = 2.3552, mean = 0,      sd = 1)
 - attr(*, "class")= chr "integrate"

> Beta$value
[1] 0.9907436

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Mary A. Marion
Sent: Thursday, July 30, 2009 2:56 PM
To: r-help at r-project.org
Subject: [R] saving only part of a computation in integrate

Hello,

I am using
Beta <-integrate(dnorm,mean=0,sd=1,-Inf,2.3552)
 > Beta
0.9907436 with absolute error < 4.2e-06

1-Beta results in an error
How can I store into Beta only .9907436?

Thank you.

Sincerely,
Mary A. Marion

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