[R] Writing out csv files

jim holtman jholtman at gmail.com
Tue Feb 2 21:45:33 CET 2010


Use 'write.csv'

write.csv(maxr,fname,na="0")

this may work better.

> write.table(x.df,sep=',')
"V1","V2","V3"
"1",1,4,7
"2",2,5,8
"3",3,6,9
> write.csv(x.df)
"","V1","V2","V3"
"1",1,4,7
"2",2,5,8
"3",3,6,9

write.csv makes it excel compatible.

On Tue, Feb 2, 2010 at 3:32 PM, James Rome <jamesrome at gmail.com> wrote:
> 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
>
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>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?



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