[19003] in s-news-athena
[S] Repeating Multiple Linear Regression analysis
daemon@ATHENA.MIT.EDU (Abd Rahman Kassim)
Sun Aug 22 21:17:49 1999
Message-Id: <01BEED47.3AFEF180@ABDRAHMA>
From: Abd Rahman Kassim <rahmank@frim.gov.my>
To: "S-news@wubios.wustl.edu" <S-news@wubios.wustl.edu>
Date: Mon, 23 Aug 1999 09:09:38 +0800
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Dear S-Plus user,
I am developing equation for diameter growth using the multiple linear regression analysis.
e.g fit<-lm(DI~DBH+SBA,data=tree.dat)
DI: diameter increment (response variable)
DBH: Tree diameter size (predictor variable)
SBA: Stand basal area "
There are more than 50 species in the stand. How can I repeat the equation for other species in one run?
Any help appreciated.
Abd Rahman
Hill Forest Silviculture
FRIM
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