recording current experimental time

Peter Quain pquain at une.edu.au
Mon Jul 11 15:57:31 UTC 2011


in the e-basic help look up: Clock.Read. It is ms since start of the 
script. You can store value in variables and compute various 
durations if you want.

Example:
'Make some Global Variables (in 'User' Tab)
Dim time1, time2, dur1 as Long
'At some later time in your script, grab time since script started
time1 = Clock.Read
'[.... some more part of your experiment ....]
'Grab time since script started
time2 = Clock.Read
'Compute interval, time1 to time2
dur1 = time2 - time1

At 01:39 AM 12/07/2011, you wrote:
>Hi together,
>
>I programmed an experiment in which a lot of positions and stimuli
>have to be calculated online. Calculation of slides happens BEFORE
>they are executed. Interestingly, this can cause a delay of up to 5
>sec (not ms!) for some computer, 2 sec for other computers and only 1
>sec on a third computer. Importantly, these computers are comparable
>regarding their hardware, i.e. processor, RAM etc.
>
>To test what exactly takes E-Prime so long under some circumstances,
>Iw ould like to measure the experimental time at several points in
>time during a single trial. So I can find out which part of the
>programming should be optimized or if there's even an error I don't
>recognize.
>
>Therefore I would like to have, let's say 10 attributes and assign 10
>times the current run time to one of these attributes. Unfortunately I
>couldn't find the right command for this operation in the manual.
>
>Does any of you know how I could do so? Or did sth similar (i.e. this
>delay) happen to one of you?
>
>Best,
>Tobias
>
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