This presumes that 'data[["material"]]' is numeric.
It is unnecessary to put the output data into a separate vector d (it is
already in a vector that is part of the 'data' data frame). I would just
overwrite `d` (or `d1`) each time through the loop:
for (i in seq_along( data[["material"]] ) ){
d <- data[i,c("material")]
fileConn <- file(paste0("TESTI/d", i, ".txt"))
writeLines(d, fileConn)
close(fileConn)
}
or
for ( i in seq_along( data[["material"]] ) ){
writeLines( data[i,c("material")], file=paste0("TESTI/d", i, ".txt" ) )
}
--
Sent from my phone. Please excuse my brevity.
On December 29, 2017 9:49:20 AM PST, Rui Barradas <ruipbarra...@sapo.pt> wrote:
>Hello,
>
>You have to create the vector 'd' outside the loop before using it.
>
>d <- numeric(nrow(data))
>
>Only then comes the loop.
>
>Hope this helps,
>
>Rui Barradas
>
>On 12/29/2017 2:31 PM, Luca Meyer wrote:
>> Hello,
>>
>> I am trying to run the following syntax for all cases within the
>dataframe
>> "data"
>>
>> d1 <- data[1,c("material")]
>> fileConn<-file("TESTI/d1.txt")
>> writeLines(d1, fileConn)
>> close(fileConn)
>>
>> I am trying to use the for function:
>>
>> for (i in 1:nrow(data)){
>> d[i] <- data[i,c("material")]
>> fileConn<-file("TESTI/d[i].txt")
>> writeLines(d[i], fileConn)
>> close(fileConn)
>> }
>>
>> but I get the error:
>>
>> Object "d" not found
>>
>> Any suggestion on how I can solve the above?
>>
>> Thanks,
>>
>> Luca
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> 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.
______________________________________________
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.
