Read out certain levels only

[Vera]

Ok, got a bit further (but it's still not working fine):

I added this inline:

If (NewTriggerValue > 0) AND (NewTriggerValue < 7) Then
	Set DesignList.Deletion = PickOne(c.GetAttrib("TriggerPos") = "1")
ElseIf NewTriggerValue = 0 Then
	Set DesignList.Deletion = PickOne(c.GetAttrib("TriggerPos") = "0")
End If

It's based on something David once wrote concerning counterbalancing
(it would have been so much easier if E-Prime could just
counterbalance for any attribute and not just Group, Subject and
Session). I am actually hoping to tell E-Prime with this, that it
needs to take any of the 18 levels which has either 1 or 0 in the
TriggerPos attribute. It doesn't seem to work though. :-(

E-Prime now only runs 1 trials (instead of 36). Any hints on that?

Grrr, I know I am not very far from a solution...

Greetings, Vera

On May 6, 11:17 am, Vera <vera.d... at googlemail.com> wrote:
> Dear forum members,
>
> I already got some very useful help here and as I am now running into
> a new problem with E-Prime, I will see if you can help me out (again).
> I did all my homework: yes I looked at the reference guide, getting
> started guide, all other documents concerning E-Prime, yes I combed
> through this forum, yes I combed through the PST-forum. :-)
>
> So here's the problem:
>
> I created a list of conditions (and all that has been working fine
> until now) and as we are moving on to another experimental setup, it
> is now very important that half of the conditions appear on one type
> of stimulus and the other half of conditions appear on another type of
> stimulus.
>
> To be more clear:
>
> On Trigger1 I want only a certain type of the 18 conditions I have to
> be executed.
> On Trigger2 I want the other 18 conditions (another type) to be
> executed.
>
> I know I could be able to do this over nested lists (probably), but it
> would take a lot of time too, as then "big surgery" has to be done on
> my program. ;-)
>
> So I figured that there should be some way to add a few lines of code,
> which tell E-Prime that it should only use a certain level in a
> certain condition.
>
> I wrote:
>
> If (NewTriggerValue > 0) AND (NewTriggerValue < 7) Then
>         c.getAttrib("TriggerPos") = 1
> ElseIf NewTriggerValue = 0 Then
>         c.getAttrib("TriggerPos") = 0
> End If
>
> TriggerPos = the type of trigger (1 or 0) which I added as an
> attribute in my designlist.
> When I try to execute, Eprime tells me "Can't Assign to Constant"
>
> Ok. But what do I need to add then in order to make it work? Basically
> I want Eprime in certain conditions only to use the levels that have
> "1" in the attribute "TriggerPos".
>
> I know that I am not very far from a solution. Any help would be very
> much appreciated. :-)
>
> Vera
>
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