[Octave-bug-tracker] [bug #41579] HeaderLines parameter in textscan different between Octave and ML

[Jérôme]

URL:
  <http://savannah.gnu.org/bugs/?41579>

                 Summary: HeaderLines parameter in textscan different between
Octave and ML
                 Project: GNU Octave
            Submitted by: jeromegnu
            Submitted on: jeu. 13 févr. 2014 14:55:24 GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.0
        Operating System: GNU/Linux

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Details:

Hi.

It seems the HeaderLines parameter in textscan behaves differently between
Matlab end Octave.

In the attached script, I test whether I'm using ML or Octave to get the same
result.

My algo does the following :

- Read first line as headers

- Read all lines from the third, which are value. The second header line is
ignored.

In ML, I need to enter HeaderLines=2, as if the pointer was still at the end
of line 1. On Octave, I need to enter HeaderLines=1, as if the pointer was
already at the beginning of line 2.

Hopefully, the example will make this clearer.

Here's the result on Octave 3.8 and ML 8.2.0.701 (R2013b) :

octave:15> test

{
  [1,1] = year
  [1,2] = day in year
  [1,3] = day in month
  [1,4] = month
  [1,5] = hour
}
   1900      1      1      1      1
   1900      1      1      1      2



>> test
    'year'    'day in year'    'day in month'    'month'    'hour'

        1900           1           1           1           1
        1900           1           1           1           2


They are the same, thanks to the test in the code. The HeaderLines parameter
differ.

As a sidenote, the behaviour un Octave seems more logical to me... Should I
submit the bug to ML ?



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File Attachments:


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Date: jeu. 13 févr. 2014 14:55:24 GMT  Name: test.m  Size: 467 o   By:
jeromegnu

<http://savannah.gnu.org/bugs/download.php?file_id=30535>
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Date: jeu. 13 févr. 2014 14:55:24 GMT  Name: test.txt  Size: 79 o   By:
jeromegnu

<http://savannah.gnu.org/bugs/download.php?file_id=30536>

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