format +

[dirk]

In Octave, "format +" is described thus:

    `+'
          Print a `+' symbol for nonzero matrix elements and a space
          for zero matrix elements.  This format can be very useful for
          examining the structure of a large matrix.

In Matlab 3.5, it is described thus:

          FORMAT +       Compact format. The symbols +, - and blank
                         are printed for positive, negative and zero
                         elements. Imaginary parts are ignored.  

The Octave effect can easily be mimicked from Matlab, i.e.
  format +; abs(A)
but the effect of the Matlab code
  format +; A
requires manual creation and population of a character matrix in Octave.

Is this not a case where Matlab compatiblity would be a good thing?

Dirk



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