Specifying output data file location?

[Liza Mccarron]

Hmm.. Thanks for that David - I did suspect something similar - on initial reading I couldn't see how changing the environment variable would help in this case as the environment variable is a global setting. Also, I must say that the PST knowledge base isn't the easiest thing to search!

-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of David McFarlane
Sent: 22 January 2010 15:19
To: e-prime at googlegroups.com
Subject: RE: Specifying output data file location?

As noted, that solution has been around since EP1.1, and in fact Ms. 
Carper copied her answer directly from PST Knowledge Base article 
#1073, itself posted way back in May of 2001.  So nothing new 
there.  Nevertheless, no-one here steered you to that solution.  Wonder why?

Because nobody so far as I know has found that capability of any 
use.  Think about it.  The E-DataPath environment variable sends 
*all* your data from *all* your studies to the same directory.  This 
is useful only in those cases where someone wants to gather all the 
data from all their studies into one master directory -- say, if you 
run the same study from several networked machines, but want all the 
data gathered into one networked directory for easier merging (but 
for critical timing you should never run E-Prime on a networked 
machine anyway, so much for that use).

But this is almost the *opposite* of what you want for your use.  Of 
course, with some clever use of batch files or AutoIt script you 
might manage to set a different E-DataPath environment variable for 
different runs, good luck with that.  So far I have not found anyone 
who has had any use for the E-DataPath environment variable, so I 
will be very interested to learn what you make of it.

-- David McFarlane, Professional Faultfinder
"For a successful technology, reality must take precedence over 
public relations, for nature cannot be fooled."  (Richard Feynman, 
Nobel prize-winning physicist)


At 1/22/2010 07:21 AM Friday, Liza Mccarron wrote:
>OK , I have had an answer from PST support about this issue and I 
>will be testing it as soon as I have time (students permitting!) but 
>am posting it here in case it is useful to anyone in the meantime:
>
> From Cindy Carper on 1/21/2010 1:18:00 PM
>Liza,
>
>It is possible to change the location of where the EDAT2 files are 
>saved so that they can be saved to a folder other than the one where 
>the ES2 file and stimulus files are saved. The DataFile object 
>within E-Prime generates a .txt file, known as the E-Recovery text 
>file, during the running of an experiment. At the end of the 
>experiment, this file is converted into an EDAT file for use within 
>E-DataAid and E-Merge.
>
>By default, these files are written to the same folder/directory as 
>the experiment EBS file that is running. E-Prime 1.1 (and later) 
>introduces the ability to redirect the default location for the 
>E-Data files to be written.
>
>Upon opening of the data file, E-Prime will look at the system 
>E-DataPath environment variable. If it is specified, all EDAT files 
>will be written to this location during the running of experiments. 
>This setting overrides the default. All data files will be written 
>to this location regardless of what folder they are run from. To 
>restore to the default setting of writing the data file contents in 
>the same directory as the running experiment EBS file, simply delete 
>or clear the value of the E-DataPath environment variable.
>
>How to specify the E-DataPath environment variable in Windows XP/Vista
>Select the System applet from Control Panel.
>Select the Advanced tab property page.
>Click the "Environment Variables" button.
>Create a E-DataPath environment variable and specify the drive 
>letter and directory of the location where the data files should be written.
>If E-DataPath is created under the user section, only experiments 
>run while logged in as the current user will be affected.
>If E-DataPath is created under the system section, all experiments 
>run will be affected.
>Consult with your Network Administrator upon choosing the system 
>variable option.
>Click OK to close and save.

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