[Ifeffit] Demeter: Problem closing communication to gnuplot

[George Sterbinsky]

Hi Bruce,

Thanks for your help. I made the changes you suggested and now get a
different message:

Global symbol "$data_object" requires explicit package name at LoadData.pl
line 8.
Execution of LoadData.pl aborted due to compilation errors.

The script follows.

#!/usr/bin/perl

use Demeter qw(:ui=screen);


my $data = Demeter::Data -> new(file => "data/fe.060",

name => 'test',

);

$data -> plot('E');

$data_object -> pause;


Any further help is appreciated.


Thanks,

George


On Sat, Apr 12, 2014 at 4:40 PM, Bruce Ravel <bravel at bnl.gov> wrote:

>
> It would, of course, help to see the script, but I can guess what the
> issue is.
>
> Try doing
>
>   use Demeter qw(:ui=screen);
>
> at the top of the script, and
>
>   $data_object -> pause;
>
> before it exits.
>
> The specific message is issued because the perl script ended while the
> pipe to the gnuplot process was still open.  That doesn't happen if you put
> in a pause.  And you get to look at the plot before it vanishes!
>
> B
>
>
> On 04/11/2014 06:45 PM, George Sterbinsky wrote:
>
>> Hello,
>>
>> I am trying to learn to use Demeter following The Demeter Programmer
>> Guide. When I attempt to run the first example script in the importing
>> data section I get the following error message:
>>
>> Graphics::GnuplotIF (object 1): problem closing communication to gnuplot
>>
>> I also see the plot window flash open and then closed on my screen.
>>
>> I am using  perl 5.16.1 on  mac OSX 10.8.5. If anyone can provide any
>> suggestions as to how I might correct this please let me know.
>>
>> Thank you,
>> George
>>
>>
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>>
>>
>
> --
>  Bruce Ravel  ------------------------------------ bravel at bnl.gov
>
>  National Institute of Standards and Technology
>  Synchrotron Science Group at NSLS --- Beamlines U7A, X24A, X23A2
>  Building 535A
>  Upton NY, 11973
>
>  Homepage:    http://xafs.org/BruceRavel
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