From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Fitting a cdf to noisy data
Date: Wed, 18 Mar 2009 20:13:01 +0000 (UTC)
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OK -- I think I've got it sorted. I just used a Custom Equation in cftool:

y = a*(0.5*erf((x-b)/(c*sqrt(2)))+.5)+d

where b=mu, and c=sigma

Thanks to all for your help!