[R] extract values for the dates and a new column
RMSOPS
ricardosousa2000 at clix.pt
Wed Mar 14 15:55:10 CET 2012
#add column Start
Hello
Good Afternoon I am trying to create a new column in the data frame, the
target is based on a column of dates to extract a value of life and add a
new column to data frame
f<-x.res$T-x.res$duration
Dataset$StarEvent<-(as.character.POSIXt(f))
x.sub$T is:
[1] "2006-10-31 20:10:35 EST" "2006-10-31 20:11:08 EST" "2006-10-31 20:11:21
EST"
[4] "2006-10-31 20:12:16 EST" "2006-10-31 20:13:20 EST" "2006-10-31
20:13:28 EST"
x$duration
159
234
345
35
544
Error in `$<-.data.frame`(`*tmp*`, "StarEvent", value = c("2006-10-31
20:08:03", :
replacement has 18 rows, data has 103)
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