[R] Get variable names from results of lm()

[arun]

Hi,

I assume this is what you are looking.
?variable.names()



 x <- 1:20
      y <-  x + (x/4 - 2)^3 + rnorm(20, sd=3)
      names(y) <- paste("O",x,sep=".")
      ww <- rep(1,20); ww[13] <- 0
      summary(lmxy <- lm(y ~ x + I(x^2)+I(x^3) + I((x-10)^2),
                         weights = ww), cor = TRUE)
variable.names(lmxy)
[1] "(Intercept)" "x"           "I(x^2)"      "I(x^3)"  

A.K.



----- Original Message -----
From: jdub <jack at ramas.com>
To: r-help at r-project.org
Cc: 
Sent: Wednesday, May 23, 2012 10:58 AM
Subject: [R] Get variable names from results of lm()


What is the best way to get the variable names used in lm() from its
results?

Stumbling around I found I could get the response variable name from

myMod$terms[[2]]

but using 

myMod$terms[[1 ]]

gives a tilda.

I found the names buried in other places in the model object and in the
summary of the model, but is there a more direct way, similar to using
coef(myMod) to get the coefficients?


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