Slider: Changing initial_fill value to something else when no response is given until time limit
I am quite new in Phyton. I read previous discussions, they helped me a lot (thank you all very much!), but I cannot find solution for one thing. I will be appreciated if you help me with this.
In a loop, I am using Slider (comes from an inline-script) and it perfectly works. My slider has a timeout, so if the participant does not respond in 5000 msec, experiment proceeds with the next trial (which is again a slider). So participant can either respond by clicking on slide or wait for 5000 msec. The thing is that if participant does not click on anywhere, the response variable is again the initial_fill value (lets say 0.5). So I cannot figure out whether "0.5" was the participant's actual response, or she did not respond to that trial at all.
Is there any way to make the initial_fill value empty so that the response variable will be saved only after the participant clicks on slider? (I'm saying "empty", not 0, because again I cannot differentiate whether 0 is an actual response or stands there because there is no response before timeout) Or is there any other way to do this?
Thank you so much in advance!