[Octave-bug-tracker] [bug #29545] empiricalcdf eats up too much memory + alternative solution

[Guido Walter Pettinari]

URL:
  <http://savannah.gnu.org/bugs/?29545>

                 Summary: empiricalcdf eats up too much memory + alternative
solution
                 Project: GNU Octave
            Submitted by: coccoinomane
            Submitted on: Tue 13 Apr 2010 03:29:07 PM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.2.3
        Operating System: Mac OS

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Details:

If I issue these commands:

N = 10000;
g = normrnd(0, 1, N, 1);
emp = empirical_cdf(g, g);

all my system's memory (4GB) is taken by Octave and everything in slowed
down.

This happens in general every time N is bigger than several thousands.

I wrote an alternative 'empirical_cdf' m-file which works fine and is
ultra-fast compared to Octave's. I attached it to this bug report.

Cheers,

Guido



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File Attachments:


-------------------------------------------------------
Date: Tue 13 Apr 2010 03:29:07 PM GMT  Name: empirical_cdf2.m  Size: 555B  
By: coccoinomane
Alternative, faster and memory efficient empirical_cdf function
<http://savannah.gnu.org/bugs/download.php?file_id=20212>

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