Re > How can I avoid the warning message altogether? ?closeAllConnections
I think of calls to closeAllConnections() in the same way that I think of calls to rm(list=objects()): they both can remove things that are not theirs to remove. Calling gc() will close all unused connections, so no damage can be done. (I thought that the warning about closing unused text connections was dropped in a recent release of R so neither is really needed.) Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of David Winsemius > Sent: Wednesday, January 04, 2012 7:10 AM > To: Dan Abner > Cc: r-help@r-project.org > Subject: Re: [R] Warning message about closing a connection XXXX > > > On Jan 4, 2012, at 9:53 AM, Dan Abner wrote: > > > Hello everyone, > > > > After running the following code, I obtain this error message. > > > > > >> mydata <- read.table(textConnection(mystring), > > + header=TRUE, sep=",", > > + row.names="id", na.strings=" ") > >> mydata > > Warning message: > > closing unused connection 3 (mystring) > > > > ===== > > > > However, when I attempt to run read.table() again and immediately > > submit > > the close() function (below), I obtain this message: > > > >> close(mystring) > > Error in UseMethod("close") : > > no applicable method for 'close' applied to an object of class > > "character" > > ===== > > > > How can I avoid the warning message altogether? > > ?closeAllConnections > > The error message occurs because "mystring was never the connection > name. > > -- > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
