From osklyar at maninvestments.com  Wed Aug 20 14:17:40 2008
From: osklyar at maninvestments.com (Sklyar, Oleg (London))
Date: Wed, 20 Aug 2008 13:17:40 +0100
Subject: [Rd] showMethods("plot",
	printTo=FALSE) fails if printTo set to FALSE
Message-ID: <1A68FCB28DE72F4BA3B967E6506CCE43030496AA@mildnpexmb01.maninvestments.ad.man.com>

Hi everybody,

any idea why showMethods fails with the following error when printTo is
set to false, i.e. to return the output as a character vector. It works
fine if printTo is left default as seen below. The behaviour is
consistent for any method I tried. stdin() generally works fine on this
system, at least when checked with: x = readLines().

Thanks,
Oleg

> x = showMethods("plot", printTo=FALSE)
Error in cat(file = printTo, sep = "", ...) : 
  cannot switch output to stdin

Enter a frame number, or 0 to exit   

1: showMethods("plot", printTo = FALSE)
2: .showMethodsTable(fdef, includeDefs, inherited, classes = classes,
showEmpt
3: doFun(f, p)
4: cf("Function: ", func, " (package ", pkg, ")\n")
5: cat(file = printTo, sep = "", ...)

Selection: 0
> x = showMethods("plot")
Function: plot (package graphics)
x="ANY", y="ANY"
x="SimResults", y="SimResults"
x="SimResults", y="missing"
x="TimeDateBase", y="character"
x="TimeDateBase", y="data.frameOrMatrix"
x="TimeDateBase", y="missing"
x="TimeSeries", y="missing"

> sessionInfo()
R version 2.8.0 Under development (unstable) (2008-08-05 r46234) 
x86_64-unknown-linux-gnu 

locale:
C

attached base packages:
[1] datasets  splines   utils     stats     graphics  grDevices methods

[8] base     

other attached packages:

## 64bit RHEL 5


Dr Oleg Sklyar
Technology Group
Man Investments Ltd
+44 (0)20 7144 3803
osklyar at maninvestments.com


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[Rd] showMethods("plot", printTo=FALSE) fails if printTo set to FALSE
Sklyar, Oleg (London