I'm wondering if someone can tell me how R determines where to wrap  
lines in its output.

I'd like to understand this because occasionally often after running  
a script the output of R no longer wraps at the correct location.   
For example, the statement, '1:40' would ordinarily return something  
like this...

   [1]    1   2   3    4   5   6   7    8   9 10 11 12 13 14 15 16 17  
18 19 20
[21] 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

and is instead returning longer lines like this...

   [1]    1   2   3    4   5   6   7    8   9 10 11 12 13 14 15 16 17  
18 19 20
  21 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

As you can imagine this makes it hard to read output because the  
results no longer line up in nice columns.  This seems to happen  
without my having resized the window but resizing the window can  
occasionally make it better.

Thanks,

Matthew


Other details:
System: Mac OS X v.10.4.11
Running R from command line (Terminal.app) or from R.app

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