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Re: compex vector in 'C' -> complex vector in 'octave'


From: James Sherman Jr.
Subject: Re: compex vector in 'C' -> complex vector in 'octave'
Date: Thu, 24 Apr 2008 14:33:43 -0400

I'm not sure how "elegant" it is, but I'd just do

y = x(1:2:end) + x(2:2:end)*i;

The best solution is probably just put this in your own
"read_complex_vector" function and just use that whenever you want to
read in that file format.

Hope this helps.

On Thu, Apr 24, 2008 at 2:14 PM, Sergei Steshenko <address@hidden> wrote:
> Hello All,
>
>  supposed I have a complex vector generated by a 'C' program and dumped in 
> binary form into a file
>  using 'fwrite'.
>
>  So, the data will put into the file this way:
>
>  re[0], im[0], re[1], im[1], ... re[N-1], im[N-1]
>
>  where N is number of elements in the vector.
>
>  I can load the vector into octave using 'fread', but, I quess, it will look 
> like vector
>  of real numbers.
>
>  I can take data at indexes 1, 3, 5... (the real parts) and at indexes 2, 4, 
> 6 ... (the imaginary
>  parts) and "reconstitute" the vector, but maybe there is a handy function 
> which already does
>  this ?
>
>  I read
>
>  
> http://www.gnu.org/software/octave/doc/interpreter/Rearranging-Matrices.html#Rearranging-Matrices
>
>  but could come up with anything more elegant than the straightforward 
> odd-even indexes solution.
>
>  Thanks,
>   Sergei.
>
>  Applications From Scratch: http://appsfromscratch.berlios.de/
>
>
>
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