Re: Naming variables using existing variables....

[Przemek Klosowski]

On 02/28/2011 10:41 AM, bleagos wrote:

> > Thanks for replying so quick. The only problem with this is that I
> > want my input to be matrices of different size depending on the
> > local variable. So something like this:
> >
> > for i=1:n A_i = rand(i,i); end

I think such 'synthetic' variable names almost always are a mistake.
Octave has a perfectly good datatype for this kind of work, the cell array:

for i=1:4
  A{i}=rand(i);
end

results in A =

{
   [1,1] =  0.61921

   [1,2] =

      0.13984   0.64332
      0.55874   0.79659

   [1,3] =

      0.85950   0.75172   0.23826
      0.87920   0.39471   0.83086
      0.74039   0.41796   0.25512

   [1,4] =

      0.091380   0.514551   0.901517   0.451026
      0.346724   0.840009   0.057729   0.225127
      0.625270   0.867836   0.830498   0.292810
      0.923174   0.948555   0.781887   0.082019

}