[R] help needed for strptime "000000" !
Dieter Menne
dieter.menne at menne-biomed.de
Wed Feb 16 21:22:21 CET 2011
JESSICA wrote:
>
>
> I have a text file stored in notepad:
>
> DATE TIME Q
> 2004-11-01 233311 1
> 2004-11-01 234227 1
> ...
> I run
>
> x<-read.table("C:/R/Sample.txt",header=T)
> then get a table
>
> ...
> I am trying to
>
> strptime(x$TIME,"%H%M%S")
>
> and get :
>
> [1] "2011-02-16 23:33:11" "2011-02-16 23:42:27" "2011-02-16 23:43:27"
> [4] "2011-02-16 23:47:34" NA NA
> [7] NA NA NA
> [10] NA NA NA
>
>
Try (but I a note sure what to do with the DATE column.
Dieter
x<-read.table("datesample.txt",
colClasses=c("Date","character","integer"), header=T)
class(x$TIME)= "POSIXct"
strptime(x$TIME,"%H%M%S")
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