Randomizing two lists in one loop

[sublimify]

I am new to psychopy, and easily confused. I feel that this is a straightforward problem that is oddly difficult for me to achieve, so any help would be greatly appreciated.

PsychoPy version1.90.1
What are you trying to achieve?: Create random pairs (the pairings must be random) of 2 lists, appearing simultaneously on the screen.

What did you try to make it work?: Googled and googled, and I am confused. So far, I’ve got one condition file with two columns: Column 1 contains images (filepaths). Column 2 contains words (text).The words are meant to appear on the same screen as the image, with random pairs of columns 1 and 2 generated each time without repetition.
example of my conditions file (condFile.xlsx):
imagePath--------Word
a.jpg----------------eye
b.jpg----------------are
c.jpg----------------confused
…etc
I do not want image c.jpg to appear with “confused” every time.
I created an image stim and text stim in the same routine, referring to $imagePath and $word. I then put a loop around it referring to condFile.xlsx and set it to random.

What specifically went wrong when you tried that?: Rows are locked, and the pairs generated from column 1 and 2 are the same each time.

I feel like I’m missing something big here. Thanks in advance.

[Michael]

Hello, you aren’t missing something. This (independently shuffling columns in a conditions file) isn’t a feature that Builder currently offers but is probably the most-requested upgrade we need to implement for linking conditions files to loops.

So for the time being, you’ll need to do this yourself, using code to do the column shuffling for you at the start of each experimental session. e.g. see this post:

Independently select random parameters of conditions

Hi Becca, But Builder just gives us one value from each column on each trial. i.e. the name of column one represents only the value of the current row from that column, so we can’t make random choices from it. In this situation, the usually recommended course is to put some code in a code component that runs at the start of the experiment. It reads in the .csv conditions file, shuffles the values within each column, and then saves out the .csv file back to disk. Builder then just uses that fil…

Give it a go and come back to us with any problems.

[Hamidreza]

Hi,
I have the same problem.
I have 40 statements and 8 images. after each statement which is rated by the subject, one image should be shown. The images have to be repeated randomly until the 40 statements are finished. Please see the attached. Thanks.
I don’t know how to put them in loop or trial to have it as one block.
should I put statements and images into separate excel files and then put each one in one loop? if so, then how can I make the connected so that after one statement, one image is shown?

I would appreciate it if you could help me with that. Please see the attached.