[Rd] lm documentation, "formula" component (PR#1105)
david.firth@nuf.ox.ac.uk
david.firth@nuf.ox.ac.uk
Mon, 1 Oct 2001 15:13:02 +0200 (MET DST)
Full_Name: David Firth
Version: 1.3.1
OS: linux and others
Submission from: (NULL) (163.1.103.121)
help(lm)
says that
An object of class `"lm"' is a list containing at least the
following components:
...
formula: the formula supplied.
But is the "formula" component necessarily present?
An example:
> x<-rnorm(10)
> y<-rnorm(10)
> temp<-lm(y~x)
> names(temp)
[1] "coefficients" "residuals" "effects" "rank"
[5] "fitted.values" "assign" "qr" "df.residual"
[9] "xlevels" "call" "terms" "model"
> temp$formula
NULL
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
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