Re: Problem loading a mat file

[Ben Abbott]

** please avoid top-posting on the mail-list **

On Jun 7, 2014, at 3:34 PM, Sylvain LEFEBVRE <address@hidden> wrote:

> ----- Mail original -----
> De: "Andreas Weber" <address@hidden>
> À: "Sylvain LEFEBVRE" <address@hidden>, address@hidden
> Envoyé: Samedi 7 Juin 2014 14:51:57
> Objet: Re: Problem loading a mat file
> 
>> Am 07.06.2014 13:13, schrieb Sylvain LEFEBVRE:
>>> I also tried to save the file from matlab to v7 format, with no
>> success (same output).
>>> I can provide the mat file in PM, if needed.
>> 
>> yes, please upload both to your webspace or for example
>> http://trash.ctdo.de or file a bug report
>> https://savannah.gnu.org/bugs/?group=octave and attach it there.
>> 
>> -- Andy
> 
> Hi Andy, 
> 
> You can download the files here: 
> https://www.dropbox.com/sh/x0efj7kud0an2i0/AAAsjPFSrDfvU_skBfdidoCCa
> 
> BTW, call to:
> 
> $ file obj_A.mat
> returns "obj_A.mat: Matlab v5 mat-file (little endian) version 0x0100"
> 
> for both versions of the file. I wouldn't file a bug if it is not one.
> 
> The file was generated with matlab 2012. I am digging in the code to find how 
> it was generated.
> 
> br,
> Sylvain

Using Matlab R2013b ...

load obj_A.mat
Warning: Variable 'obj_A' originally saved as a gmdistribution cannot be 
instantiated as an object and will be read in as a uint32. 

whos
  Name                  Size             Bytes  Class     Attributes

  default_fontsize      1x1                  8  double              
  obj_A                 6x1                 24  uint32              
  output                1x112              224  char                

obj_A

obj_A =

  3707764736
           2
           1
           1
           1
           1

It appears that obj_A a classdef object of the gmdistribution class.

        http://www.mathworks.com/help/stats/gmdistribution-class.html

If the statistics toolbox isn't installed, Matlab is also unable to load the 
file.

Classdef support is in the process of being added to Octave.  I tried creating 
and saving a simple classdef example, and encountered the error below.

        error: octave_base_value::save_ascii(): wrong type argument 'object'

Ben