In my code, I calculate the maximum values with 2 factors using maxr=with(arrdf, tapply(rate,list(weekday,quarter), max, na.rm=T))
and I want to write out the file so that Excel can read it. I used write.table(maxr, fname, sep=",", col.names=TRUE, row.names=TRUE, quote=TRUE, na="0") which works, and yields something like "0","1","2","3","4","5","6","7","8","9","10","11","12","13","14" "Friday",4,3,2,2,2,2,1,2,2,2,1,2,1,1,1,1,1,2,3,4,5,6,9,8,8,5,8,1 "Monday",3,2,1,2,1,2,1,1,1,2,1,0,0,2,2,1,2,2,4,4,4,7,7,7,7,6,8,1 "Saturday",4,3,1,1,3,2,1,1,1,2,1,0,0,2,0,1,1,2,5,6,4,5,5,8,8,6,6 "Sunday",3,2,4,1,2,2,1,1,2,2,1,0,1,1,1,1,0,1,4,3,5,6,5,8,6,5,5,1 "Thursday",3,3,2,3,2,1,0,1,3,1,0,0,1,1,0,0,2,3,4,4,5,5,5,8,6,4,6 "Tuesday",5,3,2,2,2,3,1,1,0,0,1,0,1,1,1,1,1,2,3,4,7,5,8,8,7,7,7, "Wednesday",2,3,1,2,2,1,1,1,1,1,1,0,0,0,2,1,1,3,4,6,4,6,11,10,5, The top row is the quarter hours of the day However, when Excel reads this, it will put the first "0" over Friday instead of over the 4. Is there a way to write this out with a "quarter" at the start of the first row? E.g., "quarter", "0","1","2","3","4","5","6","7","8","9","10","11","12","13","14" "Friday",4,3,2,2,2,2,1,2,2,2,1,2,1,1,1,1,1,2,3,4,5,6,9,8,8,5,8,1 "Monday",3,2,1,2,1,2,1,1,1,2,1,0,0,2,2,1,2,2,4,4,4,7,7,7,7,6,8,1 "Saturday",4,3,1,1,3,2,1,1,1,2,1,0,0,2,0,1,1,2,5,6,4,5,5,8,8,6,6 "Sunday",3,2,4,1,2,2,1,1,2,2,1,0,1,1,1,1,0,1,4,3,5,6,5,8,6,5,5,1 "Thursday",3,3,2,3,2,1,0,1,3,1,0,0,1,1,0,0,2,3,4,4,5,5,5,8,6,4,6 "Tuesday",5,3,2,2,2,3,1,1,0,0,1,0,1,1,1,1,1,2,3,4,7,5,8,8,7,7,7, "Wednesday",2,3,1,2,2,1,1,1,1,1,1,0,0,0,2,1,1,3,4,6,4,6,11,10,5, And I need to keep the non-standard column names too. Thanks again in advance, Jim Rome ______________________________________________ R-help@r-project.org mailing list 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.