Sorry, Carl, but you missed the boat on both responses.

Using readBin to read what they wrote won't help the OP if they don't 
understand what they are writing.  Nor is byte 0 the EOF marker on any 
operating system I have ever used. (It does happen to be the string terminator 
for in-memory strings in the C language, and it is actually not unusual to find 
NUL-termination used in strings that are stored in binary files. The OP does 
seem to be confused about the difference between binary files and text files, 
both of which can be affected by the disk format, CPU type, and operating 
system that are in use.)

I recommend that the OP use raw vectors (see ?raw) if they want to read and 
write binary data. I also recommend using the hexView package to manipulate the 
contents of raw vectors.
---------------------------------------------------------------------------
Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<jdnew...@dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
                                      Live:   OO#.. Dead: OO#..  Playing
Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
/Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
--------------------------------------------------------------------------- 
Sent from my phone. Please excuse my brevity.

Carl Witthoft <c...@witthoft.com> wrote:
>
>First of all,  use "readBin" to verify you get the desired data back.  
>Second, that '00' is, I believe the <EOF> character you'll find at the
>end
>of any file.
>
>
>Harutyun Khachatryan wrote
>> Dear R project officials,
>> 
>> I have found that in R 3.0.1 version "writeBin" function of "base"
>package
>> might not work correctly. For command writeBin("100",raw()) it
>answers "31
>> 30 30 00" the last double 0 is differs from
>> http://www.branah.com/ascii-converter there ascii codes are "31 30
>30". So
>> is it normal having double 0-s after ascii codes and what it means? 
>
>
>
>
>
>--
>View this message in context:
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>Sent from the R help mailing list archive at Nabble.com.
>
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