Hi,

I am writing a function that writes to a csv file for every call.

However, for the subsequent calls, I want to append the data to the existing
csv file without appending the column names again.

I tried searching in the previous posts, but I am stuck with different
errors.

Here is what I am doing (dataF is a data-frame):-

outputFilePath <- paste(getwd(), "/", "outputModel.csv", sep="");

counter <- 1
for (userid in userids){
       dataF <- getUserData(userid)

        if(counter == 1){
write.csv(dataF, file = outputFilePath, append=F)
 }else{
write.csv(dataF, file = outputFilePath, append=T,col.names=NA)
}

       counter <- counter + 1
}

I tried setting col.names = F (In append=T), but no good.

Can anyone throw light on the correct usage.

Thanks in advance.

Regards,
Harsh Yadav

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