Hi all,
I have a quick question about lm on group, say I have:
x <- 1:10
y <- x*3
buckets <- seq(0, 10, by=5)
g <- cut(x, buckets)
summary(lm(y ~ g - 1))
Coefficients:
Estimate Std. Error t value Pr(>|t|)
g(0,5] 9.000 2.121 4.243 0.00283 **
g(5,10] 24.000 2.121 11.314 3.35e-06 ***
What is it doing exactly? I guess the estimate is the mean of the y's
in each group.
How about other stats.. what do they exactly mean when we do lm on
groups?
Thanks a lot!
--
View this message in context:
http://n4.nabble.com/lm-on-group-tp1107220p1107220.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
