It is user lack-of-understanding: there is no error here. R outputs
a
b
c
backspace
newline
How the terminal displays that is up to the terminal, which was
unstated. (Capture the output and look at it in a hex editor.)
For
a
b
c
backspace
a normal terminal will output the prompt and overwrite 'c'.
On 05/11/2013 10:53, Renaud Gaujoux wrote:
Maybe it's a Linux problem:
cat("abc\b")
ab> cat("abc\b\n")
abc
sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
Sys.info()
sysname
"Linux"
release
"3.11.0-12-generic"
version
"#19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013"
nodename
"XXXXX"
machine
"x86_64"
login
"XXXXX"
user
"XXXXX"
effective_user
"XXXXX"
On 1 November 2013 19:54, Dennis Murphy <djmu...@gmail.com> wrote:
I can't reproduce the error, either:
cat("abc\b")
ab> cat("abc\b\n")
ab
sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
<package info snipped for brevity>
Dennis
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Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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