RE: octave text format

[Martin Strympl]

I am not able to use sqlite3 database with octave. I know it is possible, but 
it will be very unusable in my situation. I have to write some computer 
independent tool. There is too much old version of octave and it isn't possible 
to update it for all computers. For my octave version, database octave package 
cannot be used. I have tried it.

It is a reason, why I need to read data from sqlite3 database and re-save some 
of them to octave format.

I have read that example for load from octave file, but there is no example how 
to do save.
________________________________________
Od: c. address@hidden
Odesláno: 24. ledna 2014 21:30
Komu: Martin Strympl
Kopie: address@hidden
Předmět: Re: octave text format

On 24 Jan 2014, at 12:07, Martin Strympl <address@hidden> wrote:

> Hello.
>
> For my work, I want to generate Octave’s text data format file. I want to 
> bring some data to octave and use octave to calculate something with them. It 
> will be around tens of Mega Bytes. But I have data in different format and I 
> have been working on tool for conversion.
>
> I have looked at Octave’s text data format, and it looks simple.
>
> My question is, is there any documentation of Octave’s text data format, 
> which can I use?
> Or how complicated is to use Octave C++ api to create matrix and cell 
> variables and save them to file?
>
> I have checked doxygen documentation and some headers of Octave, but for me, 
> it looks little complicated to create octave text file with using function 
> do_save from load-save.cc file. It looks there are much hidden thing.
>
> Thanks for answer.
>
> Martin Strympl

Rather than try to rewrite code to produce files in Octave format,
why don't you just use Octave itself to write your files?

Here's an example about how to do that from either C / C++ or Fortran:

 http://wiki.octave.org/Fortran#C.2B.2B_function

If your files are very big you can change it to use binary format instead
by changing on code line only.

c.