[R] Export data

John Kane jrkrideau at yahoo.ca
Mon Sep 11 12:29:22 CEST 2006


?write.table  >> 
             append = TRUE ?





--- Marie-Noëlle Rolland <mrolland at grignon.inra.fr>
wrote:

> Hi there,
> 
> I would like to write a data output. In first time,
> a data frame (called 
> "res") is written in a file *csv such as:
> 
> A    B    C    # names of data
> 1.5  4.5  7    # values
> 
> So I use "write.table" which prints "res" to a file
> "file.csv"
>
write.table(res,file="file.csv",sep="",row.names=TRUE,col.names=TRUE,eol
> 
> = "\n")
> 
> After, I would like to append other data to the same
> file,
> 
> A    B    C
> 1.5  4.5  7
> 3    6    9   # appended data
> 
> I use then the same function but with different
> arguments:
>
write.table(res,file="file.csv",append=TRUE,sep="",row.names=TRUE,col.names=FALSE,eol
> 
> = "\n")
> 
> Actually, it doesn't work, the file is overwritten
> by the new one.
> 
> I got something like that:
> A    B    C
> 3    6    9
> 
> Coul you help me? Thank you in advance
> 
> Kind regards,
> Marie-Noëlle
> 
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