If this template helps then use it. If not then just delete and start from scratch.
Win10
PsychoPy version 2022.2.4
Standard Standalone? (y)
What are you trying to achieve?:
slice columns from numpy array
What did you try to make it work?:
my python code in the code object
mou_cords_trans = np.dot( rotmx, mou_cords[0,:-1].transpose())
What specifically went wrong when you tried that?:
Getting the following error message
/* Syntax Error: Fix Python code */
But the following code is fine (though not what I’d like to do, namely, rotate a multi-row, 2D vector):
mou_cords_trans = np.dot( rotmx, mou_cords[0,1].transpose())