Here is one way:
x <- c(2,3)
names(x) <- c("mean", "sd")
do.call(pnorm, c(list(0), as.list(x)))
Bill Venables
http://www.cmis.csiro.au/bill.venables/
-----Original Message-----
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Thomas Roth (geb. Kaliwe)
Sent: Friday, 17 July 2009 6:03 PM
To: 'r-help@r-project.org'
Subject: [R] how to evaluate character vector within pnorm()
Hi,
I'm trying to evaluate a character vector within pnorm. I have a vector
with values and names
x = c(2,3)
names(x) = c("mean", "sd")
so that i tried the following
temp = paste(names(x), x, sep = "=")
#gives
#> temp
#[1] "mean=2" "sd=3"
#Problem is that both values 2 and 3 are taken as values for the mean
argument in pnorm
pnorm(0, eval(parse(text = temp)) )
#but not as
pnorm(0, mean = 2, sd = 3 )
#How can i get
pnorm(0, eval(parse(text = temp)) )
#to do
pnorm(0, mean = 2, sd = 3 )
Thank you for your time
Thomas Roth
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
