Subject: qsar IC50

From: Richard SMITH <[email-masked]>
Date: Sat, 2 Feb 2002 02:26:54 -0800 (PST)

Dear Friends:
	I am trying to build QSAR using 17 compounds
for which IC50 values are available. Do I need to 
use the IC50 as it is or should I take log(IC50)
or -log(IC50). The values range from 10 to 100.
I tried IC50 and log(IC50) using GFA. I am getting
different QSAR equation. Could you please advice
me on how to proceed. Thanks in advance.
	Smith

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