From: Liaw, Andy <andy_liaw_at_merck.com>

Date: Tue 08 Mar 2005 - 05:15:10 EST

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Mar 08 05:20:19 2005

Date: Tue 08 Mar 2005 - 05:15:10 EST

x <- 1000

write.table(Info[Info[,4] > x, c(1, 4)], file="/tmp/CT.dat")

*> From: Melanie Vida
**>
*

> Here is a simple question. Is there a quicker way to write to a file

*> several rows of data at a time rather than one line at a
**> time? How can
**> the code below be optimized to write several rows at a time to a file
**> rather than one line at a time. See my slow method of
**> write.table below:
**>
**> ---------------------------
**> x<-1000
**> for( i in 1:385420)
**> (
**> if(Info[i,4] > x)
**> write.table (cbind(Info[i,1], Info[i,4], file="/tmp/CT.dat",
**> append=TRUE, row.names=FALSE, col.names=FALSE)
**>
**> Thanks,
**>
**> -Melanie
**>
**> ______________________________________________
**> R-help@stat.math.ethz.ch mailing list
**> **https://stat.ethz.ch/mailman/listinfo/r-help
**> PLEASE do read the posting guide!
**> http://www.R-project.org/posting-guide.html
**>
**>
**>
*

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Mar 08 05:20:19 2005

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