R help - Aug 2017 - Error in `row.names<-.data.frame`(`*tmp*`, value = c("1.9", "1.9", "1.9", : duplicate 'row.names' are not allowed

Hi,
Can someone explain this error below,
I don't understand why the 2 int columns are associated to make a row name
> horse1.data<-read.csv("cte2.csv", header=TRUE,
sep=";")
>
h1.dat<-mlogit.data(data=horse1.data,choice="win",chid.var="raceid",alt.var="nbChev",shape="long")
Error in `row.names<-.data.frame`(`*tmp*`, value = c("1.9",
"1.9", "1.9",  :
  duplicate 'row.names' are not allowed
In addition: Warning message:
non-unique values when setting 'row.names': ?1.9?, ?2.17?
> head(horse1.data,27)
   raceid nbChev  cteD cteTh win
1       1      9  29.6  23.8  no
2       1      9   5.3   6.7  no
3       1      9  10.9  11.5  no
4       1      9   8.2   6.7 yes
5       1      9  17.8  18.2  no
6       1      9  26.0  30.0  no
7       1      9   4.4   5.7  no
8       1      9   4.9   6.0  no
9       1      9   4.5   6.9  no
10      2     17  32.1  48.3  no
11      2     17   8.8  24.5  no
12      2     17  36.7  18.3  no
13      2     17   6.7  11.8 yes
14      2     17  10.3  12.8  no
15      2     17  61.6  68.5  no
16      2     17   2.5   6.7  no
17      2     17  27.7  30.9  no
18      2     17   8.4  10.5  no
19      2     17  56.5  40.7  no
20      2     17  95.5  11.9  no
21      2     17  12.7   6.4  no
22      2     17  19.6  14.2  no
23      2     17 269.6  67.2  no
24      2     17 300.0  75.6  no
25      2     17 300.0 114.3  no
26      2     17  36.3  16.9  no
> str(horse1.data)
'data.frame':        26 obs. of  5 variables:
 $ raceid: int  1 1 1 1 1 1 1 1 1 2 ...
 $ nbChev: int  9 9 9 9 9 9 9 9 9 17 ...
 $ cteD  : num  29.6 5.3 10.9 8.2 17.8 26 4.4 4.9 4.5 32.1 ...
 $ cteTh : num  23.8 6.7 11.5 6.7 18.2 30 5.7 6 6.9 48.3 ...
 $ win   : Factor w/ 2 levels "no","yes": 1 1 1 2 1 1 1 1 1
1 ...

below the .csv file url for those willing to reproduce the error
https://www.dropbox.com/s/wv7nq8tk9k87le5/cte2.csv?dl=0

sandoz

Hi

I did not notice any answer to your question so I try. After studying docs and
other responses to similar question I deduct that chid.var and alt.var are mixed
together and new data frame is being build with chid.var and alt.var combination
as new row names. As the combination is not unique this operation results to
error.

But I may be completely wrong.

Cheers
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
> sandoz at free.fr
> Sent: Saturday, July 29, 2017 1:40 AM
> To: r-help at r-project.org
> Subject: [R] Error in `row.names<-.data.frame`(`*tmp*`, value =
c("1.9", "1.9",
> "1.9", : duplicate 'row.names' are not allowed
>
>  Hi,
> Can someone explain this error below,
> I don't understand why the 2 int columns are associated to make a row
name
>
> > horse1.data<-read.csv("cte2.csv", header=TRUE,
sep=";")
> >
h1.dat<-mlogit.data(data=horse1.data,choice="win",chid.var="raceid",al
> > t.var="nbChev",shape="long")
> Error in `row.names<-.data.frame`(`*tmp*`, value = c("1.9",
"1.9", "1.9",  :
>   duplicate 'row.names' are not allowed
> In addition: Warning message:
> non-unique values when setting 'row.names': ?1.9?, ?2.17?
>
> > head(horse1.data,27)
>    raceid nbChev  cteD cteTh win
> 1       1      9  29.6  23.8  no
> 2       1      9   5.3   6.7  no
> 3       1      9  10.9  11.5  no
> 4       1      9   8.2   6.7 yes
> 5       1      9  17.8  18.2  no
> 6       1      9  26.0  30.0  no
> 7       1      9   4.4   5.7  no
> 8       1      9   4.9   6.0  no
> 9       1      9   4.5   6.9  no
> 10      2     17  32.1  48.3  no
> 11      2     17   8.8  24.5  no
> 12      2     17  36.7  18.3  no
> 13      2     17   6.7  11.8 yes
> 14      2     17  10.3  12.8  no
> 15      2     17  61.6  68.5  no
> 16      2     17   2.5   6.7  no
> 17      2     17  27.7  30.9  no
> 18      2     17   8.4  10.5  no
> 19      2     17  56.5  40.7  no
> 20      2     17  95.5  11.9  no
> 21      2     17  12.7   6.4  no
> 22      2     17  19.6  14.2  no
> 23      2     17 269.6  67.2  no
> 24      2     17 300.0  75.6  no
> 25      2     17 300.0 114.3  no
> 26      2     17  36.3  16.9  no
>
> > str(horse1.data)
> 'data.frame':        26 obs. of  5 variables:
>  $ raceid: int  1 1 1 1 1 1 1 1 1 2 ...
>  $ nbChev: int  9 9 9 9 9 9 9 9 9 17 ...
>  $ cteD  : num  29.6 5.3 10.9 8.2 17.8 26 4.4 4.9 4.5 32.1 ...
>  $ cteTh : num  23.8 6.7 11.5 6.7 18.2 30 5.7 6 6.9 48.3 ...
>  $ win   : Factor w/ 2 levels "no","yes": 1 1 1 2 1 1 1
1 1 1 ...
>
> below the .csv file url for those willing to reproduce the error
> https://www.dropbox.com/s/wv7nq8tk9k87le5/cte2.csv?dl=0
>
> sandoz
>
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