Wed, 09/05/2012 - 06:48 am
Hi, i am new user with Igor. I wanna find the action potential voltage threshold in my traces (voltage vs. time). I import the traces, differenciate them and then using Findlevel i can search where (the time point) the derivative reaches certain threshold value. But i am stuck trying to find what voltage value corresponds to this time (how to find an y value knowing the x value). Could anyone help me pelase?
September 5, 2012 at 07:51 am - Permalink
Thanks a lot jtigor, i was struggling with the FindValue but i couldnt get it to work. I read the help but still was not enough. Where could i find more explicit help about how to use it?
September 5, 2012 at 08:23 am - Permalink
John Weeks
WaveMetrics, Inc.
support@wavemetrics.com
September 5, 2012 at 09:21 am - Permalink
yValue = theWave(xValue)
or, if you have an X point and not an X value,
yValue = theWave[xPoint]
So if you are using FindLevel without the /P flag, use the first form. If you are using the /P flag, use the second form.
September 5, 2012 at 12:20 pm - Permalink
September 15, 2012 at 03:54 pm - Permalink