I too am trying to calculate the IC50. How do I go about this? Is there an equation? I have my dose response curve but it doesnt look like the typical sigmoidal curve. Do I need to make the x-axis log-transformed?
http://www.excelforum.com/showthread.php?t=588037
Cheers
Last edited by VBA Noob; 08-01-2008 at 12:59 PM.
You would need to interpolate the curve to find the 50% point, and then add a second series with three points: y axis at 50%, horizontal across to curve at the interpolated value, and vertical down to the x axis.
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