Displaying 2 results from an estimated 2 matches for "strngsasfactors".
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stringsasfactors
2010 Oct 06
3
Empty data frame does not maintain column type
Does anyone know why a data frame created with empty character columns
converts them to integer columns?
> df<-data.frame(a=character(0),b=character(0))
> df<-rbind(df,c("a","a"))
> typeof(df[1,1])
[1] "integer"
AsIs doesn't help:
> df<-data.frame(a=I(character(0)),b=I(character(0)))
> df<-rbind(df,I(c("a","a")))
2010 Mar 20
1
POSIXct conversion stops part way through a df column
I have a date/time imported from Excel in my dataframe oooi (with
several hundred thousand rows), for example the input data near row 3100 is
ActualOnLocal
11/12/2008 21:35
11/12/2008 22:03
11/12/2008 22:12
11/12/2008 22:38
11/12/2008 23:16
11/12/2008 23:23
11/13/2008 7:00
11/13/2008 7:03
11/13/2008 7:05
11/13/2008 7:11
I want to convert the column to POSIXct
oooi$dpt <-