[datatable-help] fread statement for a long data table

[Michael Smith]

Does it help if you set `sep="~"`, i.e.

fread("data.txt", sep = "~")



On 07/28/2014 08:24 PM, Frank S. wrote:
> Hi all,
> 
>  
> 
> I've a data base in txt file, which contains approximately **1.5 million
> observations and 18 variables. The aspect of two of the observations
> 
> is the following:
> 
>  
> 
> 345~X~99~30/10/1950~89000~784~ERVY LE CHATEL,
> RUE~9~AUXERRE~08500~410005~VISITE
> MEDICALE~20/03/1998~20~UROLOGIE~9~VISITES~5~
> 
>  
> 
> 67895~J~102~28/05/1967~89000~359~CHATILLON SUR SEIENE,
> RUE~10~AUXERRE~08340~560025~ASSURANCE-CRÉDIT~15/09/1997~25~UROLOGIE~1~VISITES~5~
> 
>  
> 
> So, as you can see, the columns are separated by "~" symbol, but there
> is also other symbols: ",", "-", written accents, ...  inside some
> descriptive variables. I execute:
> 
>  
> 
> data <- fread('data.txt',autostart=60)
> 
>  
> 
> The R gives an error message in one row
> 
>  
> 
> Error en fread("data.txt", autostart = 60) :
>   Expected sep (',') but '' ends field 1 on line 1 when detecting types:
> 
>  
> 
> Please, anyone can help me?
> 
> 
> 
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