Re: When to do transformation of data?

From: Mats Karlsson Date: April 29, 2002 technical Source: cognigencorp.com
From: Mats Karlsson [Mats.Karlsson@farmbio.uu.se] Subject: Re: [NMusers] When to do transformation of data? Sent: Monday, April 29, 2002 2:38 PM Dear ATul, I would often try it regardless of diagnostics, but a skewed distribution of WRES (more high outliers than low) is usually a sign that transformation will improve things. Best regards, Mats Mats Karlsson, PhD Professor of Pharmacometrics Div. of Pharmacokinetics and Drug Therapy Dept. of Pharmaceutical Biosciences Faculty of Pharmacy Uppsala University Box 591 SE-751 24 Uppsala Sweden phone +46 18 471 4105 fax +46 18 471 4003 mats.karlsson@farmbio.uu.se

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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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