[R] Problem with plotting diagnostics - Error in object$coefficients : $ operator is invalid for atomic vectors
Peter Ehlers
ehlers at ucalgary.ca
Fri Nov 26 12:48:42 CET 2010
On 2010-11-25 23:59, Manderscheid Katharina wrote:
> hi peter,
>
> thanks for your reply. i was kind of hoping/thinking that others have encountered the same problem too.
>
> i try to provide a reproducable example.
>
> my variables are the following (just the cases 1:50). the whole dataset has about 2800 cases.
>> satlife[1:50]
> [1] 9 10 11 8 11 10 11 6 7 8 3 8 10 9 8 9 7 7 9 8 8 7 10 8 9
> [26] 5 7 9 9 11 11 5 3 9 8 9 3 9 6 8 5 6 6 6 9 11 6 5 9 9
>> income[1:50]
> [1] 1841-2250 1111-1460 1841-2250 1841-2250 2251-2710 2711-3190 1461-1840
> [8] 3771-4550 4551-5870 3191-3770 1841-2250 1461-1840 3771-4550 2251-2710
> [15] 2251-2710 2711-3190 0-1100 1841-2250<NA> 1841-2250 1111-1460
> [22]<NA> 3771-4550<NA> 1461-1840<NA> 2711-3190 1461-1840
> [29] 0-1100 1461-1840<NA> 1841-2250<NA> 3191-3770<NA>
> [36]<NA> <NA> 2251-2710 2711-3190<NA> <NA> <NA>
> [43] 2711-3190 2251-2710 3771-4550 3771-4550<NA> <NA> 4551-5870
> [50]<NA>
> 10 Levels: 0-1100 1111-1460 1461-1840 1841-2250 2251-2710 ... 5870 und mehr
>> satwirt[1:50]
> [1] 3 5 6 1 5 5 4 1 4 6 4 1 4 8 1 4 6 5 10 7 8 1 2 4 4
> [26] 5 4 4 8 NA 3 4 5 8 6 NA 6 8 6 4 4 3 6 8 6 3 4 1 9 8
>> freunde[1:50]
> [1] 4 5 7 4 6 7 7 3 3 4 2 4 4 5 3 6 7 4 5 2 4 4 5 4 4 6 5 4 4 6 6 6 4 4 5 4 5 6
> [39] 3 7 4 5 6 5 5 5 4 2 3 5
>> gesund[1:50]
> [1] gesund gesund gesund gesund nicht gesund
> [6] gesund gesund nicht gesund nicht gesund gesund
> [11] gesund nicht gesund gesund gesund nicht gesund
> [16] gesund gesund nicht gesund gesund gesund
> [21] gesund gesund gesund gesund nicht gesund
> [26] gesund gesund gesund nicht gesund gesund
> [31] gesund gesund nicht gesund gesund gesund
> [36] nicht gesund nicht gesund nicht gesund nicht gesund gesund
> [41] nicht gesund gesund nicht gesund gesund nicht gesund
> [46] gesund gesund gesund gesund gesund
> Levels: gesund nicht gesund
>
> and this is the regression model:
>> reg.satlife<- lm(satlife ~ as.numeric(income)+ freunde + gesund+ satwirt)
>
> the problem appears when calling
>> par(mfrow=c(2,2))
>> plot(reg.satlife)
>
> the problem persists also when running the model without the factors income and gesund.
>
> do you need more information?
Dear Katharina,
Yes, we do need more information.
First, what you provide above is not easily *reproducible*.
Try to provide data with dput() or post it on some accessible
website.
But before you do that, run your regression on the first 50
cases of your data (what you provide above, I assume). It
works for me (although I can't see why you would want the
"as.numeric(income)" term).
My guess is that there's something wrong with your data.
I would try:
1. put your variables into a data.frame;
2. str(...your data.frame...);
3. run regressions with single predictors;
4. run regressions with two predictors;
etc, until the "problem" appears.
It's almost certain that the problem is not with R.
Peter Ehlers
>
> thanks,
> katharina
>
> ________________________________________
> Von: Peter Ehlers [ehlers at ucalgary.ca]
> Gesendet: Donnerstag, 25. November 2010 21:54
> An: Manderscheid Katharina
> Cc: 'r-help at r-project.org'; 'Duncan Murdoch'
> Betreff: Re: [R] Problem with plotting diagnostics - Error in object$coefficients : $ operator is invalid for atomic vectors
>
> On 2010-11-25 02:25, Manderscheid Katharina wrote:
>> this problem seems to only exist in R 2.12.0 but not in R 2.11.1.
>> any ideas? a bug?
>>
>
> Duncan *did* say that he was using R 2.12.0. So that's not likely
> to be the problem. Most of the time, when users claim that a
> problem exists in a new version that did not exist in an older
> version, it's due to a change in the user's setup or to not
> updating packages or to not checking the NEWS file.
>
> Since you still have not provided a *reproducible* example,
> it's not likely that anyone can help. Can't you make up a
> small example that shows exactly how you are using lm()
> and that will generate the error?
>
> Peter Ehlers
>
>>
>> ----------------------------------------------
>> dr. katharina manderscheid
>>
>> soziologisches seminar
>> universität luzern
>>
>> kasernenplatz 3
>> 6000 luzern 7
>>
>> tel. ++41 41 228 4657
>>
>> web: http://www.unilu.ch/deu/dr.-katharina-manderscheid_346380.aspx
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Duncan Murdoch [mailto:murdoch.duncan at gmail.com]
>> Gesendet: Mittwoch, 17. November 2010 16:33
>> An: Manderscheid Katharina
>> Cc: 'r-help at r-project.org'
>> Betreff: Re: [R] Problem with plotting diagnostics - Error in object$coefficients : $ operator is invalid for atomic vectors
>>
>> On 17/11/2010 10:28 AM, Manderscheid Katharina wrote:
>>> hi all,
>>> after fitting a multiple linear regression
>>> model<- lm(y ~ a + b+ c+d)
>>> i wanted to plot diagnostics
>>> plot(model)
>>> but get the error message
>>> Error in object$coefficients : $ operator is invalid for atomic vectors.
>>> which does not make a lot of sense, since there is no "$" - i am working with an attached dataset.
>>> can anyone help, please??
>>> thanks a lot,
>>> kat
>>
>>
>> I just tried those lines (with fake data for a,b,c,d and y) and got no error message. I was using R 2.12.0.
>>
>> I think you need to show us a reproducible example, and the
>> sessionInfo() to go with it, to help with this.
>>
>> Duncan Murdoch
>>
>> ______________________________________________
>> R-help at 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.
>
More information about the R-help
mailing list