[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Reading data from m files

From: Phil Fong
Subject: Re: Reading data from m files
Date: Tue, 16 Jan 2007 12:28:22 -0800 (PST)

> Why a .m file? It's just as easy (and faster) to
> load .mat or ascii 
> files in both Octave and Matlab. The problem here is
> that the entire 
> file must be processed by the command parser.
> Matlab's parser has become 
> much faster than Octave's in recent versions, which
> exaplains the speed 
> difference. If you really must keep your data in a
> .m file, then I think 
> it would not be difficult to write a parser as you
> suggest, which I 
> suspect would be much faster.

  As I said not all the programs were written by me. 
The main reason I saw to use .m files to store some
data is that it's an ascii format that can store
multiple variables of different sizes and types.
  I have not had the time to look closely at the
Octave  parsing code but I did notice that while
reading the m file more that half it's execution time
in top is shown as system time.  Is it making a lot of
system calls?


8:00? 8:25? 8:40? Find a flick in no time 
with the Yahoo! Search movie showtime shortcut.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]