Re: [R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread arun
10-30 15:45:00" "2011-10-30 15:30:00"  #$ second: POSIXct, format: "2011-10-30 16:00:00" "2011-10-30 15:45:00" A.K. - Original Message - From: Arnaud Duranel To: arun Cc: R help Sent: Monday, September 24, 2012 10:42 AM Subject: [R] POSIXct coerced in

Re: [R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread arun
#3  c 2011-10-30 2011-10-30 > #4  d 2012-06-22 2012-06-22 >  str(dat2) > #'data.frame':    4 obs. of  3 variables: > # $ ID    : Factor w/ 4 levels "a","b","c","d": 1 2 3 4 > # $ first : Date, format: "2011-08-27" "2011-10-30" ..

Re: [R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread jim holtman
gt; dat2<-dat1 >> dat2$first<-as.Date(dat2$first,format="%Y-%m-%d %HH:MM:%SS") >> dat2$second<-as.Date(dat2$second,format="%Y-%m-%d %HH:MM:%SS") >> dat2 >> # ID first second >> #1 a 2011-08-27 2011-08-27 >> #2 b 2

[R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread Arnaud Duranel
t;b","c","d": 1 2 3 4 # $ first : Date, format: "2011-08-27" "2011-10-30" ... # $ second: Date, format: "2011-08-27" "2011-10-30" ... dat2<-within(dat2,ID<-as.character(ID)) subset(dat2,ID%in% c("a","b")) # ID

Re: [R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread arun
ot;2011-10-30" ... # $ second: Date, format: "2011-08-27" "2011-10-30" ... dat2<-within(dat2,ID<-as.character(ID)) subset(dat2,ID%in% c("a","b")) #  ID  first     second #1  a 2011-08-27 2011-08-27 #2  b 2011-10-30 2011-10-30 A.K. - Or

[R] POSIXct coerced into numeric when filling a data frame

2012-09-24 Thread Arnaud Duranel
Hello I have a list of POSIXct objects, from which I want to extract those values that match a specific date, keeping them in POSIXct format. For a specific date there is 0-2 matching values. As an example (the actual list and objects are much longer): x<-list() x[["first"]]<-as.POSIXct(c("2011