Python Pandas JS Equivalent

[wakecarter]

This recent post might help.

Adding code to Builder for the first time to accomplish randomization of stimuli

I have an experiment I made with Builder that runs well, but I need to be able to randomize two sets of image stimuli separately for each trial. I have read many of the previous posts on this subject and followed a tutorial online. I wrote some code but you will see below I am getting error messages. The images are posters and faces presented sequentially – I simply want Poster A to not always be presented with Face A simply because they are in the same row -ie, randomize each column independen…