[R] lm() function

From: hanen <hanen.mastouri_at_yahoo.fr>
Date: Thu, 29 May 2008 14:15:01 -0700 (PDT)


my linear model is y=c+a*x1+b*x2 i tried to found a, c, b by the use of:

mymodel<-lm(y~1+x1+x2) where y, x1, x2 are 3 vectors with the same length

the result is a=NA.so i want to know where is the problem.

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