Re: loading a filename beginning with a digit

[Luc Lefebvre]

Hi,

I don't believe that a variable name can start with a numeric value.  If 
the file name _must_ start with a numeric value, might I suggest a 
combination of "open" and "read" operations, reading the file into a 
variable with a legal name <twox for ex>.

cheers

On Sun, 20 Jul 2003, Mike Miller wrote:

> Suppose, for example, that I have a file named 2x.txt with these contents:
> 
> 1 3
> 9 5
> 
> (Just two lines with two integers per line, but in real life I'll want to
> do this with larger files!)  When I load the file, I am not able to access
> the data.  (Please don't tell me to rename the file!  I just want to make
> the load function work within a script I'm writing no matter what the
> filename, if that's possible.)  I did this in a couple of versions of
> Octave on Solaris 8:
> 
> 
> octave:1> load 2x.txt
> octave:2> whos
> 
> *** local user variables:
> 
> prot  type               rows   cols  name
> ====  ====               ====   ====  ====
>  wd   matrix                2      2  2x
> 
> octave:3> 2x
> parse error:
> 
> >>> 2x
>      ^
> 
> octave:3> "2x"
> ans = 2x
> octave:4> eval("2x")
> parse error:
> 
> >>> 2x
>      ^
> 
> error: evaluating index expression near line 4, column 1
> 
> 
> So, Octave seems to load the 2x2 matrix, but I just can't figure out how
> to get at it.  (I thought Octave didn't allow variables beginning with a
> digit.)  I'd really like to be able to rename the loaded matrix, but how?
> 
> Thanks in advance for any tips!
> 
> Mike
> 
> 

-- 
Luc Lefebvre

In the beginner's mind there are many possibilities,
in the expert's mind there are few.                     <Shunryu Suzuki>

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