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
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