[R] HMisc describe -- error with dates

tmurph6@po-box.mcgill.ca tmurph6 at po-box.mcgill.ca
Wed Nov 12 00:28:24 CET 2003


I am trying to use HMisc describe on a data frame. I have specified certain
variables as dates using, for example:

df1$aidsdate       <- dates(aidsdate,format="day.mon.year", origin=c(month = 1,
day = 1, year = 1960))

When I use describe on the dataframe I get this error:

Error in Ops.dates(weights, x) : * not defined for chron objects

Has anyone had this problem? I had used the same method with an older version of
R and HMisc and it worked. 

Should be be formatting date variables differently?

Thank you!

Tanya Murphy

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