[R-SIG-Mac] "?" in scripteditor

Carl Witthoft carl at witthoft.com
Thu Aug 30 00:18:40 CEST 2012

Well, first of all,  it appears the character got converted to '?' in 
the email.

Next,  I strongly suspect it's a NewLine character, not a tilde, which 
is not the "not" char in R anyway.  If I'm right,this happens when text 
files (sometimes) when text files get moved from WindowsOS to OSX and 
"end of line" is CR-LF or just LF, etc. and the editor gets confused.

I've been noticing lately some weirdness in the editor when copying and 
pasting code. Last night when I was trying to run some code from the 
ggplot2 mailing list I pasted the code in from gmail. As usual, there 
were extra line breaks that caused the code to fail. I pasted the code 
into the script editor to fix the line breaks and then copy/pasted it 
into R-GUI. I then got a lot more errors than I did previously, all of 
which were caused by the insertion of an invisible "?" symbol (a logical 
not). Here: 
https://plus.google.com/116319893425910717496/posts/5Yxkk7GFwts is a 
screen shot. The code in question is from this question: 
... but this has happened before a few times (I cannot recall when it 
started, recently... perhaps since installing ML, but maybe before 
that). If I hit up to input the previous previous command the "?" are 
not there and when I search in the editor for this symbol nothing is 
found. Is there something going on with the editor or the clipboard or 
...? Where should I be looking? Brandons-MacBook-Air:~ bhurr$ 
system_profiler SPSoftwareDataType Software: System Software Overview: 
System Version: OS X 10.8.1 (12B19) Kernel Version: Darwin 12.1.0 Boot 
Volume: AIR Boot Mode: Normal Time since boot: 54 minutes
 > sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

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

other attached packages:
  [1] gplots_2.11.0     MASS_7.3-18       KernSmooth_2.23-7
caTools_1.13      bitops_1.0-4.1
  [6] gdata_2.11.0      gtools_2.7.0      lattice_0.20-6
gridBase_0.4-5    TeachingDemos_2.8
[11] plyr_1.7.1        reshape2_1.2.1    ggplot2_0.9.1

loaded via a namespace (and not attached):
  [1] colorspace_1.1-1   dichromat_1.2-4    digest_0.5.2
labeling_0.1       memoise_0.1
  [6] munsell_0.3        proto_0.3-9.2      RColorBrewer_1.0-5
scales_0.2.1       stringr_0.6
[11] tools_2.15.1

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