[R] problem w/ lm() ?

Francisco Cribari
Wed, 13 Jan 1999 15:41:47 -0000

Guido, Thanks. But it does not seem to help... (See below.) Francisco.

R : Copyright 1998, The R Development Core Team
Version 0.63.1 Beta (Dec 5, 1998)

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[Previously saved workspace restored]

> ls()
character(0)
> rm(list=ls()
+ )
> data(women)
> women
   height weight
1      58    115
2      59    117
3      60    120
4      61    123
5      62    126
6      63    129
7      64    132
8      65    135
9      66    139
10     67    142
11     68    146
12     69    150
13     70    154
14     71    159
15     72    164
> summary(lm(weight ~ height, data = women))

Call:
lm(formula = weight ~ height, data = women)

Residuals:
    Min      1Q  Median      3Q     Max
-1.7333 -1.1333 -0.3833  0.7417  3.1167

Coefficients:
Error: binary operator applied to invalid types
>

On 13 Jan 99, at 19:11, Guido Masarotto wrote:

> On Wed, Jan 13, 1999 at 02:17:09PM -0000, Francisco Cribari wrote:
> >
> > Any thoughts on the following? Am I missing something? [I am running R
> > for Windows 0.63.1 on a Win NT 4.0 (workstation, sevice pack #4) box.]
> >
> >
> > R : Copyright 1998, The R Development Core Team
> > Version 0.63.1 Beta (Dec 5, 1998)
> >
.......................................................................
> >
> > [Previously saved workspace restored]
> >
> > > data(women)
> > > names(women)
> > [1] "height" "weight"
> > > summary(lm(weight ~ height, data = women))
> >
>
>   Francisco, I have just tried under Win95, same R version, without
>   problems. What is contained in the "restored workspace"?
>   What happens if you clean it (rm(list=ls()) or use the Misc/Remove...
>   menu item)? guido