Full_Name: Luca Braglia
Version: 2.8
OS: Windows
Submission from: (NULL) (85.18.136.110)
>From ?as.POSIXct
## SPSS dates (R-help 2006-02-17)
z <- c(10485849600, 10477641600, 10561104000, 10562745600)
as.Date(as.POSIXct(z, origin="1582-10-14", tz="GMT"))
^^
It should be 15 (Gregorian calendar adoption day, when SPSS starts to count
seconds behind dates) . With 14, I used a .sav dataset imported with read.spss,
and after as.Date(as.POSIXct()) I got (obviously)
R.date = SPSS.date - 1
Bye (and thank you for givin'us R)
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