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Re: Octave install and initial program.


From: Juan Pablo Carbajal
Subject: Re: Octave install and initial program.
Date: Fri, 8 May 2015 18:23:16 +0200

On Fri, May 8, 2015 at 1:42 PM, Roger Moore
<address@hidden> wrote:
> Just a quick note: gnuplot manages to plot the file OK, using the function
> plot.
>
> Don't know if the helps, but it didn't make any difference re-installing
> 3.8.2, there is no other version able to yum, so I'm stuck with 3.8.2.
> Unless you know of a Tar ball somewhere (the ftp site is off line).
>
> Thanks in advance for any help given!
>
> Roger.
>
> ________________________________
> From: address@hidden
> To: address@hidden
> Subject: RE: Octave install and initial program.
> Date: Fri, 8 May 2015 10:56:46 +0100
>
>
> Juan,
>          I believe I have install all the packages, but it's still crashing
> when calling plot(). Even with a minimal
> program, e.g.
>
> ecg,txt, single column of length 1000:
>
> -0.06
> -0.065
> ...
>
> load "ecg.txt"
> y=ecg(1:999,1);
> y
> -0.06
> -0.065
> etc...
>
> plot(y);
> crashed!
>
> Would stepping back a version help, if so which version? Is there a stable
> Fedora Linux build?
>
> Thanks for any help!
>
> Regards,
>
> Roger Moore.
>
> ________________________________
> From: address@hidden
> To: address@hidden
> Subject: RE: Octave install and initial program.
> Date: Fri, 8 May 2015 10:16:00 +0100
>
>
>
>
> octave:4> graphics_toolkit
> ans = fltk
>
> $uname -r
> 3.19.5-200.fc21.x86_64
>
> I'm now trying to install the packages.
>
> $sudo yum install octave.*
>
> I'll see how that works!
>
> Cheers,
>
> Roger Moore.
>
>
>
> ________________________________
> From: address@hidden
> To: address@hidden
> Subject: RE: Octave install and initial program.
> Date: Fri, 8 May 2015 10:09:41 +0100
>
>
>
>> Date: Thu, 7 May 2015 19:57:51 +0200
>> Subject: Re: Octave install and initial program.
>> From: address@hidden
>> To: address@hidden
>> CC: address@hidden
>>
>> On Thu, May 7, 2015 at 3:48 PM, Roger Moore
>> <address@hidden> wrote:
>> > Hi,
>> > I have just install Octave onto my Laptop "sudo yum install octave",
>> > which was successful. So, now I have >octave -v = GNU Octave 3.8.2
>> >
>> > I have download some ecg data and created a single column file with the
>> > data, out.txt.
>> >
>> > I can load it.
>> >> load "out.txt";
>> >>
>> >>x=out(1:1000,1);
>> >>
>> >>x
>> > x =
>> >
>> > -0.06000
>> > -0.06500 etc ...
>> >
>> >>plot(x);
>> > Panic: Segmentation fault -- Stopping myself...
>> > attempting to save variables to 'octave-workspace'...
>> > save to 'octave-workspace' complete
>> > Segmentation fault (core dumped)
>> > [ ]$
>> >
>> > The plot brings up a GUI, but crashes soon after.
>> >
>> > Any ideas?
>> >
>> > Regards,
>> >
>> > Roger Moore.
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Help-octave mailing list
>> > address@hidden
>> > https://lists.gnu.org/mailman/listinfo/help-octave
>> >
>> No idea what is causing this, but it would help if you tell us:
>> - the output of graphics_toolkit
>> - your OS (uname -r)
>>
>> If you have gnuplot installed in your OS, you can try
>>
>> close all;
>> graphics_toolkit gnuplot
>>
>> and then attempt to plot again.

Please always keep the mailing list in CC.

If gnuplot works use it. You can try the qt terminal of gnuplot.
Probably it is due to some older version of fltk, but I am not sure.



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