| Date: | Fri, 29 Sep 2006 15:31:01 -0400 |
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| Reply-To: | Peter Flom <Flom@NDRI.ORG> |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | Peter Flom <Flom@NDRI.ORG> |
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| Subject: | Re: Stat Q--CLASS STATEMENT |
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| In-Reply-To: | <20060929191551.7B5171BF287@ws1-1.us4.outblaze.com> |
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| Content-Type: | text/plain; charset=US-ASCII |
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>>> Pavlo Row <pavlo@INORBIT.COM> 9/29/2006 3:15 pm >>>
wrote
<<<
(1) I know that PROC REG doesn't have a CLASS statement. Why not?
>>>
One of life's mysteries.
<<<
(2) How does PROC REG compare to GLM, i.e., when does one use PROG REG
and when PROG GLM? What's the meaning of a CLASS statement here?
(3) What is the meaning of a CLASS statemnt in PROG LOGISTIC or any
proc for that matter?
>>>
REG offers more diagnostics than GLM.
GLM fits more models than REG and has a CLASS statement
CLASS identifies variables that are categorical
HTH
Peter
Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
Center for Drug Use and HIV Research
National Development and Research Institutes
71 W. 23rd St
http://cduhr.ndri.org
www.peterflom.com
New York, NY 10010
(212) 845-4485 (voice)
(917) 438-0894 (fax)
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