On Wed, 20 Aug 2008, Sklyar, Oleg (London) wrote:
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
This has coerced FALSE to 0, which is connection stdin(). You cannot
write to stdin.
I see no sign that printTo = FALSE has been implemented. You could use a
text connection, e.g.
con <- textConnection(NULL, open="w")
x <- showMethods("plot", printTo=con)
textConnectionValue(con)
close(con)
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
[EMAIL PROTECTED]
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