Edwin Wibisono wrote:
Hello, I have problem
I have a, and b in regression
then I can't plot x,y with (and) a, b lines

can you help me ?

thx

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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
I think what you want is something like:

x = data.frame(a = runif(100), b = rnorm(100))
lmobj = lm(b~a, x)
plot(b~a, x)
abline(lmobj)

cheers,
Paul

--
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +31302535773
Fax:    +31302531145
http://intamap.geo.uu.nl/~paul

______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

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