It's ancient history, but the idiocy was to take a perfectly fine[*] standard
file format and make it use locale dependent number formats, instead of just
standardizing on the US format for data transfer purposes.
-pd
[*] OK, less than perfect, given quoting issues and various other stuff...
> On 27 Jul 2017, at 22:39 , Rui Barradas <ruipbarra...@sapo.pt> wrote:
>
> Hello,
>
> Inline.
>
> Em 27-07-2017 20:36, peter dalgaard escreveu:
>>
>>> On 27 Jul 2017, at 18:03 , Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote:
>>>
>>> Looks like you need to pay attention to how you read in your data. In
>>> general, you should always execute one statement at a time until you know
>>> your script is working. All the errors after the first one are unhelpful
>>> to you or us.
>>>
>>> If you actually pay attention to what is in your horse.data data frame
>>> after you have read it in, the columns did not get separated out. The "csv"
>>> in in read.csv stands for "comma", and your file appears to use semicolons.
>>> Read the help for read.csv using
>>>
>>> ?read.csv
>>>
>>> and use the sep=";" argument. You should always use the str() function to
>>> look at your data and make sure it looks reasonable before you start trying
>>> to give it to other functions to analyze.
>>
>> Or use read.csv2 which exists for that reason. (It may be "c" for comma, but
>> in locales that use comma as the decimal point it is replaced by the
>> semicolon, as you'll find out if you save an Excel file as CSV in, say,
>> France. This is due to some idiotic decisions from early 1990s, but there
>> you are...)
>
> Idiotic? In Portugal that is also true and it "allows" us to use the comma as
> a decimals marker, as you've said. I would use it, with or without someone
> else's decision.
>
> Rui Barradas
>
>>
>> -pd
>>
>>
>>> --
>>> Sent from my phone. Please excuse my brevity.
>>>
>>> On July 27, 2017 8:01:12 AM PDT, san...@free.fr wrote:
>>>> Hi,
>>>> Please help about the error I am getting after the h1.dat<- line :
>>>> this line worked with much more independant variables and bigger data.
>>>> This time I want to work with just 2 variables cteD & cteTh.
>>>> What is wrong ?
>>>>
>>>>> setwd("C:/Rstudio/Trot")
>>>>> library(mlogit)
>>>>> horse1.data<-read.csv("cte2.csv")
>>>>>
>>>> h1.dat<-mlogit.data(data=horse1.data,choice="win",chid.var="raceid",alt.var="nbChev",shape="long")
>>>>
>>>> Error in `[[<-.data.frame`(`*tmp*`, alt.name, value = integer(0)) :
>>>> le tableau de remplacement a 0 lignes, le tableau remplacé en a 26
>>>>
>>>>
>>>>> mul1.model<-mlogit(win~cteD+cteTh|0|0,data=h1.dat)
>>>> Error in mlogit(win ~ cteD + cteTh | 0 | 0, data = h1.dat) :
>>>> object 'h1.dat' not found
>>>>
>>>>
>>>>> head(horse.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;30;no
>>>> 7 1;9;4.4;5.7;no
>>>> 8 1;9;4.9;6;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;75.6;no
>>>> 25 2;17;300;114.3;no
>>>> 26 2;17;36.3;16.9;no
>>>>
>>>> ______________________________________________
>>>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>>> 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.
>>>
>>> ______________________________________________
>>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> 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.
--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd....@cbs.dk Priv: pda...@gmail.com
______________________________________________
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