On Tuesday, November 27, 2012, Tagmarie wrote:
> Hello,
> I tried to construct my very first loop today and completly failed :-(
> Maybe someone can help me?
> I have a dataframe somewhat like this one:
>
> myframe <- data.frame (Timestamp=c("24.09.2012 09:00", "24.09.2012 10:00",
> "24.09.2012 11:00",
> "25.09.2012 09:00", "25.09.2012 10:00",
> "25.09.2012 11:00"),
> Speed=c(1,1,2,5,1,6))
> myframestime <- as.POSIXct (strptime(as.character(myframe$Timestamp),
> "%d.%m.%Y %H:%M"), tz="GMT")
> myframe2 <- cbind (myframe,myframestime)
> myframe2$Timestamp <- NULL
> myframe2
Where's the loopy bit that fails?
Cheers, MW
>
> I want to construct a loop for every day, i.e. for each day I want to do
> some calculations.
> (I know in the example it would be easier to do it differently, my real
> data
> are little more complex).
>
> And BTW: Thanks for helping me earlier today with that other problem :-)
>
>
>
>
> --
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>
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