[R] Export data

[Jacques VESLOT]

 > res <- as.data.frame(t(c(A=1,B=2,C=3)))
 > res
   A B C
1 1 2 3

 > write.table(res, file="file.csv", sep="\t", row.names=F, col.names=T)
 > write.table(t(4:6), append=T, file="file.csv", sep="\t", row.names=F, col.names=F)

 > read.csv("file.csv", sep="\t")
   A B C
1 1 2 3
2 4 5 6

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Jacques VESLOT

CNRS UMR 8090
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http://www-good.ibl.fr
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Marie-Noëlle Rolland a écrit :
> 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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