URL of experiment: https://pavlovia.org/Wake/prospective-memory-ldt Description of the problem: I write prospective memory experiments by reading the targets and fillers into separate arrays and then interleaving them. To keep things simple for the student, I ask for all the stimuli to be in the s…

The reason I use slice is because I can’t get other syntax to work in PsychoPy (standalone). slice(0,10) works [0:10] gives Python syntax error in field Selected Rows when trying to set the loop [0:10] gives TypeError: ‘NoneType’ object is not iterable when starting the experiment [0,10] gives In…

“slice()” doesn’t exist in JS, array.slice() and string.slice() do. I think the way importConditions works in JS, it just doesn’t work that way. You may have better luck with alternative syntax, like [0:10]. See https://www.psychopy.org/api/data.html#psychopy.data.importConditions for examples of d…

That’s unexpected. @jon you know this import system better than I do, any thoughts? @wakecarter do you have any experience reporting issues on GitHub? The fact that the import syntax isn’t working is worth reporting as a bug: https://github.com/psychopy/psychopy/issues If you don’t feel comfortab…

I’m not surprised that using $slice() doesn’t work. slice is a class in Python but it’s a method in JS. And I don’t think we need to worry about the problem with import in general as this is about the importConditions function. What it really needs is for the importConditions in the JS lib to handl…

Just to follow up on this. What is the correct way to select rows that could work for both standalone and pavlova? Thanks!

I’ve just tested the format 0:10 for the first ten rows. That can be set up in code as a variable userows=“0:10” and then used with the dollar $userows. Best wishes, Wakefield

hi @wakecarter and thx as usual for your insights! I have the following issue with my experiment ( https://run.pavlovia.org/cmon_lab/intention_clinicians/html ) I need to select 16 trials from a .xlsx file of 120. The trials should be selected according to the following strategy: 4 trials randomly…

ReferenceError: slice is not defined

Online experiments

huppfi May 13, 2020, 7:36am 8

I have it setup exactly like that and it still uses all the files in the csv for me. Any ideas?

RangeError: Invalid array length

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ReferenceError: slice is not defined

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