RE: When to do transformation of data?

From: Chuanpu Hu Date: April 23, 2002 technical Source: cognigencorp.com
From: "Hu, Chuanpu" Subject: RE: [NMusers] When to do transformation of data? Date: Tue, 23 Apr 2002 10:12:31 -0400 Leonid, A few years ago I had a similar example, and I made exactly the same conclusion as yours. For your question, I do not think it is possible to link the additive + exponential error to the log-transformed structure, because the former allows negative Y's whereas the latter does not. Chuanpu ---------------------------------------------------------------- Chuanpu Hu, Ph.D. Research Modeling and Simulation Clinical Pharmacology Discovery Medicine GlaxoSmithKline Tel: 919-483-8205 Fax: 919-483-6380

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Apr 23, 2002 Atul Bhattaram Venkatesh When to do transformation of data?
Apr 23, 2002 Steve Charnick Re: When to do transformation of data?
Apr 23, 2002 William Bachman RE: When to do transformation of data?
Apr 23, 2002 Leonid Gibiansky Re: When to do transformation of data?
Apr 23, 2002 Chuanpu Hu RE: When to do transformation of data?
Apr 23, 2002 Lewis B. Sheiner Re: When to do transformation of data?
Apr 23, 2002 Leonid Gibiansky RE: When to do transformation of data?
Apr 23, 2002 Leonid Gibiansky RE: When to do transformation of data?
Apr 23, 2002 William Bachman reasonable equivalent model in the log space
Apr 23, 2002 Chuanpu Hu RE: When to do transformation of data?
Apr 23, 2002 Leonid Gibiansky RE: When to do transformation of data?
Apr 23, 2002 Unknown RE: When to do transformation of data?
Apr 24, 2002 Peter Wright RE: When to do transformation of data?
Apr 29, 2002 Atul Bhattaram Venkatesh When to do transformation of data?
Apr 29, 2002 Mats Karlsson Re: When to do transformation of data?
Apr 29, 2002 Mats Karlsson Re: When to do transformation of data?
Apr 29, 2002 Kenneth Kowalski RE: When to do transformation of data?
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