Hi, I am trying to create a line reproduction where in the reproduction trial participants will use a mouse to scroll up and down to make the lines smaller or larger. I tried to generate a code like this, but I am not sure if it will work, I can’t even run it because I get:
start=(-[currentLineLength][0]/2.0, 0), end=(+[currentLineLength][0]/2.0, 0),
UnboundLocalError: local variable ‘currentLineLength’ referenced before assignment
or ‘currentLineLength’ is not defined.
What should I do
Did you fix this. It looks like the issue is that your line size is set to constant, but currentLineLength doesn’t have a value until Begin Routine.
Hi, no. I just changed the line size to set every frame. But should I add a value to the CurrentLineLength before Begin Routine because I already used builder for participants to see the lines but for the reproduction trial, I wrote that so that a line approximately 100 px to be seen and then they can make the adjustment. What’s wrong with this and the code? and when I run the study I just see a gray screen or it shows only 1 line and a gray screen.
Thank you!
Hi, I just added “currentLineLength=100” to the begin experiment but nothing is changing. What can I do?
Thanks!!
Why are you creating a mouse object in code and with a mouse component?
Try getting the basics of the experiment working before customising it with code components.
Because sometimes I see that you need to initialize some things so I thought I should. Ok so if you’re saying that I don’t need to do that I just deleted that part but I still see just one line and gray page and now I don’t get the error(currentlinelength not defined)What can I do?
Thanks!!
A line and a grey screen is consistent with your routine (one line polygon). What are you expecting
You shouldn’t use while in Each Frame code. It interrupts the Each Frame construction.
I have no idea whether you can use getWheelRel online. Maybe try with a arrow keys first.
Is there a reason why you have key_resp and event.getKeys()? Are they monitoring for something different?
Hi, I want to calculate the bias by subtracting the actual line length from each estimate. This one didn’t work, what do you think is wrong:
adjusted_line_length = adjustable_line.end[0] - adjustable_line.start[0]
bias = actual_line_length - adjusted_line_length
Thanks!!
What is adjusted_line?
Why aren’t you just calculating bias = actual_line_length - currentLineLength ?
What error message do you get?
What is adjustable_line and are you sure it has .end and .start properties?
