Thank you very much Charles!
I probably should stop passing the dots to subfunctions and rather doctor the
results of as.list(match.call()), e.g.
mc <- as.list(match.call())
mc[[1]] <- stopifnot
eval(as.call(mc))
This looks safer.
Thanks again,
Vadim
________________________________________
From: Charles C. Berry [EMAIL PROTECTED]
Sent: Friday, August 15, 2008 2:27 PM
To: Vadim Organovich
Cc: r-help@r-project.org
Subject: Re: [R] stopifnot message mutation
On Fri, 15 Aug 2008, Vadim Organovich wrote:
> Dear R-users,
>
> Could someone please explain why the message printed by function stopifnot2,
> see below, is different from that of stopifnot itself?
Refer to the source
page(stopifnot,'print')
Then consider this:
> foo <- function(...) match.call()
> foo2 <- function(...) foo(...)
> foo(a+b)[[2]]
a + b
> foo2(a+b)[[2]]
..1
>
HTH,
Chuck
>
> Thank you for your help,
> Vadim
>
>
>> stopifnot2 <- function(...) stopifnot(...)
>> stopifnot(F)
> Error: F is not TRUE
>> stopifnot2(F)
> Error: ..1 is not TRUE
>
>> version
> _
> platform i386-pc-mingw32
> arch i386
> os mingw32
> system i386, mingw32
> status
> major 2
> minor 6.1
> year 2007
> month 11
> day 26
> svn rev 43537
> language R
> version.string R version 2.6.1 (2007-11-26)
>
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:[EMAIL PROTECTED] UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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therefore, does not make any guarantees as to the completeness or accuracy of
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and does not constitute a recommendation, offer, request or solicitation of any
kind to buy, sell, subscribe, redeem or perform any type of transaction of a
financial product.
______________________________________________
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