On 01/06/2012 08:46, Uwe Ligges wrote:
On 01.06.2012 07:17, Tejas Kale wrote:
Dear Uwe
Many thanks for your reply. I agree with you but I need the silencing of
output for a particular reason.
I am working on a statistical package called VOStat which uses a Java
based
GUI to get the data and parameters of the test to be executed from the
user, creates the appropriate R script for it, runs it, and prints the
output given by R. For a particular test, if the required library is not
installed, the same is done dynamically without requiring any user input.
Now the problem I face is as follows:- Suppose the user requires a
correlation matrix of selected variables along with their p-values. For
this, I use the 'rcorr' function of the library 'Hmisc'. If the user does
not have 'Hmisc' available in his machine, it is automatically installed
for him. Once the installation is done, the library is loaded and 'rcorr'
is used for the necessary computation. But since I am presenting the
entire
output generated by the R script (which has the install function as
well),
along with the correlation matrices, the user of VOStat also gets to see
the output of 'install.packages()', something I want to avoid.
Could please suggest a workaround that could be used to get rid of the
output?
You could try to sink() into some null device, if that does not interact
with the GUI you are using.
Unfortunately we don't know what platform the OP is talking about, as he
persistently ignores the posting guide.
With a source-package install there will be several processes involving
that are likely to write to stdout or stderr (the C file handles, not
the R connections), and sink() does not re-direct those.
I would expect sink() or capture.output() to work for a binary package
install (except for diagnostic messages which the user probably needs to
see: you can with case sink the R message connection).
Best,
Uwe Ligges
Thanks
Tejas
On Thursday 31 May 2012 08:00 PM, Uwe Ligges wrote:
On 31.05.2012 16:18, Tejas Kale wrote:
Hello!
Is there a way to suppress the output of 'install.packages()'? I have
seen that the 'download.file' function has a 'quiet' option but I do
not know how to use it.
I do not see any good reason to allow that. A user shoudl see if software
is being installed.
Uwe ligges
Thanks for your help
Tejas Kale
IUCAA, Pune
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--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
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______________________________________________
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