[R] Duplicate row names are not allowed

peter dalgaard pdalgd at gmail.com
Tue May 23 11:22:14 CEST 2017

Presumably, RCommander's readXL generates an invalid data frame (John?). To investigate, look at


and to fix 

row.names(Dataset) <- NULL

If the issue is that Dataset really isn't a data frame, maybe try Dataset <- as.data.frame(Dataset).

[Your screenshot made it through to here, but not the data. Notice, as a general matter, that it is preferable to give your code as part of the message text; it is hard to copy-paste from a .png]


> On 22 May 2017, at 21:02 , ville iiskola via R-help <r-help at r-project.org> wrote:
> Hi
> I read a book where was shown an example how to create a probability model with mlogit. I tried to do like the instruction said but i get error message that "duplicate row names are not allowed". What could i do to fix it?
> I had the data in excel and imported it to R using R commander. I attach the data file and print sqreen of my code to here if somebody could help the novice. Ville<2017-05-21 (1).png>______________________________________________
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Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com

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