On one slide, show different images, loaded from a list

[dkmcf]

Vera,

Oh, and one more bit of generic programming advice that I repeat here
from time to time -- If your actual experiment program has any
complexity to it, then set that aside and exercise all your ideas on
smaller demo programs that you make just for that purpose, then when
you get your techniques worked out just apply those back to your
actual experiment program.  Everybody (including me) thinks that they
can save time by working out fixes directly in their actual experiment
programs, and everybody (including me) is wrong about that.  You save
time by working out the techniques in smaller "exercise" programs,
then applying what you learn back to your actual experiment program.

<editorial>
This becomes especially true when you have to work out the finer
points of E-Prime as "documented" in the online E-Basic Help.  As
crucial as the online E-Basic Help is to gaining any real
understanding of E-Prime, in many many places it is at best
misleading, and at worst just plain wrong (not to mention that much of
the example code does not even compile), and PST takes no interest in
fixing that (I have personally posted several corrections to PST and
continue to do so, to almost no avail).  So if, like me, you ever have
to understand how E-Prime really works, then you will have to make
many, many small demo programs in order to overcome the rampant
misinformation throughout the documentation.

And BTW, this is where PST Web Support comes in.  Many of us have the
old-fashioned notion that Support is a last resort.  But as a result
of discussions with PST staff I now understand that PST Web Support is
their substitute for adequate documentation.  So once again, I urge
everyone to get over your inhibitions and to consult PST Web Support
every bit as much as you would otherwise consult the documentation.
</editorial>

-- David McFarlane, Professional Faultfinder


On Mar 11, 9:12 am, dkmcf <mcfar... at msu.edu> wrote:
> Vera,
>
> Wow, what a discussion this sparked!  I think E-Prime can do what you
> want in a quite straightforward way using nested Lists without any
> inline code.  As hinted at the thread that you cited (http://
> groups.google.com/group/e-prime/browse_thread/thread/
> 58e3ae402de68442 ), the key is "colon syntax".  So if you do not
> already have this working, here is another homework assignment for
> you:  Go to the index in the User's Guide that came with E-Prime and
> look up "colon syntax", then follow that to the appropriate tutorials
> and work through all of those.  That might give you enough ideas to
> figure it out.  But if you remain stuck after that, then refresh this
> thread some time next week and I will post more details on this
> approach (I need you to struggle a bit first so that the later lesson
> will "take").
>
> And don't forget PST Web Support, they like to take these sorts of
> questions athttp://support.pstnet.com/e%2Dprime/support/login.aspand
> they strive to respond to all requests in 24-48 hours (although
> reported response time is currently more like 5 days).  If you do
> contact Web Support then please report back here with the results.
>
> -- David McFarlane, Professional Faultfinder
>
> On Mar 10, 11:45 am, Vera <vera.d... at googlemail.com> wrote:
>
> > I sure hope I will get some help here! I am trying to construct a
> > visual search task in which participants have to find let's say a
> > "yellow triangle" within "blue triangles" and "yellow triangles".
>
> > For this, I created a list with different conditions (like number of
> > items on the grid, target present or not) and I was actually counting
> > on using a slide with (let's say) 9 images, on which I would each of
> > the 9 images randomly from a nested list.
>
> > So I made my nested list with images (.png's) and I of course made
> > sure to have the image-objects on the slide point first to the
> > procedure list and then to the nested list (I think I read about all
> > the messages concerning this topic, including this onehttp://groups.google.com/group/e-prime/browse_thread/thread/84c742b85...
> > (thanks a lot for the work-around, it was a good thing for me to see
> > if I did it right, which I did, but it still will not load the right
> > pictures).
>
> > So the problem is: It seems that the "point to the nested list
> > function" is working, but then it seems impossible to load 9 DIFFERENT
> > images (it will show me 9 times the same image, at least therewith
> > confirming that it points to the correct nested list).
>
> > And I tried every option I could think of (like putting the 9 images
> > in one line of the nested list, but then I get other errors). :-( I am
> > now believing that I should maybe really write to the developers,
> > simply because this "functionality" seems to be absent.
>
> > Now I will probably have to code it (which is were the real problem
> > starts, because I am an absolute no-programmer ;-) ) and the institute
> > where I am currently working actually bought E-Prime because it should
> > be more or less "programming-free" (well ok, I understand you cannot
> > rule it out completely, but the thing I described above should be
> > possible in my opinion).
>
> > I really hope some of you guys have some creative solution for me!
>
> > With kind regards,
>
> > Vera

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