Hello, all.
I ran across an odd problem while working in R 2.6.0. The command line text
follows. Basically, I attempted to convert a character vector of length 13 (in
a data frame with 13 rows) from a character representation of dates to a POSIX
representation using strptime. strptime returned a vector of length 9, which
appears to contain 13 values (!) in the appropriate format.
I can't find any way to convince the strptime output that it has 13 values . .
. even though (for example) posixvector[1:13] returns 13 values,
anothervectorof length13<-posixvector[1:13] produces a length mismatch error.
Can anyone help diagnose this, or work around it?
Many thanks,
~Pat Carroll.
> Dataset$DateFilled
[1] "10/20/2005" "11/4/2005" "11/18/2005" "12/2/2005" "4/3/2006"
"6/5/2006" "7/14/2006" "4/27/2007" "5/7/2007" "7/17/2007" "2/14/2005"
[12] "2/14/2005" "2/21/2005"
> datefilledpos<-strptime(Dataset$DateFilled,format="%m/%d/%Y")
> datefilledpos
[1] "2005-10-20" "2005-11-04" "2005-11-18" "2005-12-02" "2006-04-03"
"2006-06-05" "2006-07-14" "2007-04-27" "2007-05-07" "2007-07-17" "2005-02-14"
[12] "2005-02-14" "2005-02-21"
> length(datefilledpos)
[1] 9
> length(Dataset$DateFilled)
[1] 13
> datefilledpos[1:13]
[1] "2005-10-20" "2005-11-04" "2005-11-18" "2005-12-02" "2006-04-03"
"2006-06-05" "2006-07-14" "2007-04-27" "2007-05-07" "2007-07-17" "2005-02-14"
[12] "2005-02-14" "2005-02-21"
> Dataset$DateFilled<-datefilledpos
Error in `$<-.data.frame`(`*tmp*`, "DateFilled", value = list(sec = c(0, :
replacement has 9 rows, data has 13
> Dataset$DateFilled<-datefilledpos[1:13]
Error in `$<-.data.frame`(`*tmp*`, "DateFilled", value = list(sec = c(0, :
replacement has 9 rows, data has 13
>
Pat Carroll.
what matters most is how well you walk through the fire.
bukowski.
____________________________________________________________________________________
Be a better friend, newshound, and
______________________________________________
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.
