how to read matrices ?

[John W. Eaton]

On 19-Jan-1999, Jochen Solbrig <address@hidden> wrote:

| i' trying to read matrices like this one from a data file:
| 1 2
| 2 6
| 3 9
| 
| i could use the function "load" but this case i have to
| specify the name of the matrix and it's number of
| columns and rows in a header.

Are the matrices that you want to read all in separate data files?  If
so, you can use load without having to add the header info.  The
variable name will be constructed from the file name.  For example,

  $ cat > foo.dat
  1 2
  2 6
  3 9
  $ octave
  Octave, version 2.0.13 (i686-pc-linux-gnulibc1).
  Copyright (C) 1996, 1997, 1998 John W. Eaton.
  This is free software with ABSOLUTELY NO WARRANTY.
  For details, type `warranty'.

  octave:1> load foo.dat
  octave:2> who

  *** local user variables:

  foo

  octave:3> foo
  foo =

    1  2
    2  6
    3  9



jwe