bugGNU Octave - Bugs: bug #34843, insufficient information on mat...

 
 

bug #34843: insufficient information on mat read failure

Submitter:  None
Submitted:  Wed 16 Nov 2011 06:53:55 PM UTC
   
 
Category:  Interpreter Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Documentation
Status:  In Progress Assigned to:  jordigh
Originator Name:  Charlie Originator Email:  -email is unavailable-
Open/Closed:  * Closed Release:  * 3.4.2
Operating System:  * GNU/Linux Fixed Release:  None
Planned Release:  None
* Mandatory Fields

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Sun 23 Jun 2013 10:18:16 PM UTC, comment #4: 

Is the original datafile which shows problems still available?  The 'load' function has been made more compatible with undocumented Matlab features and it may be able to parse the file now.  Unfortunately the link mentioned in the bug report seems to be dead now.

Rik <rik5>
Group administrator
Thu 17 Nov 2011 04:21:13 PM UTC, comment #3: 

Thanks, I'll start looking into this, if someone else doesn't beat me to it.

Jordi GutiƩrrez Hermoso <jordigh>
Group Member
Thu 17 Nov 2011 10:19:56 AM UTC, comment #2: 

Certainly, it's publicly available data:

http://download.berkeleyearth.org/downloads/PreliminaryMatlabDataset.zip

file size is about 120MB

I have loaded other .mot data from this project and got it to load cleanly.

Anonymous
Wed 16 Nov 2011 07:15:41 PM UTC, comment #1: 

Is it possible to share the mat file that is producing these errors?

Jordi GutiƩrrez Hermoso <jordigh>
Group Member
Wed 16 Nov 2011 06:53:55 PM UTC, original submission:  

Hi,

I am trying to load a fairly large .mat file created by Matlab and I'm getting a lot of errors like those shown below

using octave 3.4.2 and java-1.2.8

eg.
error: load: invalid element type = 0

zero is very common 65535 also and raft of less frequent values.

Do these numbers actually represent something related to "data element type" or are they spurious values output because octave is incorrectly parsing the data?

ie does this mean I have a dozen formats that are not supported or probably just one ?

If it's just one I may have a go at fixing it or getting the data in an acceptable format.

Shouldn't Octave be trapping this a bit better?


There seems to insufficient information to know what it can't handle and to do something about it.

Also I have seen allusions to this issue that some formats are not yet supported but there seems no list of what is and isn't supported that would enable to work around it.


It would seem better if this incompatibility was at least properly documented.

Anonymous

 

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  • -email is unavailable- added by rik5 (Posted a comment)
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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2013-07-01 rik5 Open/ClosedOpen Closed
    2011-11-17 jordigh StatusNeed Info In Progress
        Assigned toNone jordigh
    2011-11-16 jordigh StatusNone Need Info

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