Hi,
I could not find any information on how `read.spss' deals with date information. As an example, I created a file containing two variables, one numeric (values = (1, 2)) and one of type "Datum" in SPSS (german version with values "11.02.2003" and "03.04.1999" and I get in R:
SPSSfile = url("http://www.imbe.med.uni-erlangen.de/~hothorn/dates.sav";, "rb") SPSSdata = readBin(SPSSfile, "numeric", n = 10000) writeBin(SPSSdata, con = "dummy.sav") library(foreign) read.spss("dummy.sav")
$DUMMY [1] 1 2
$DATE [1] 13264300800 13142476800
attr(,"label.table") attr(,"label.table")$DUMMY NULL
attr(,"label.table")$DATE NULL
Could anyone give me a a hint how I can convert 13264300800 to 2003/02/11 again, please?
Hi Torsten,
Idee:
R> (13264300800-13142476800) / (60*60*24): [1] 1410
Vom 03.04.1999 bis 11.02.2003: 1410 Tage? Kommt grob hin. Also ist 13264300800 Anzahl Sekunden seit???? Ist das vielleicht bei SPSS irgendwo dokumentiert?
Bis naechste Woche!
Gruss, Uwe
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