[R] summary(difftime(...))

[I M S White]

Is there any way to get a numerical summary of the values of a difftime
object? E.g.

TimeToWean <- difftime(WeanDate, BirthDate, units = "days")

I can repeat

sum(TimeToWean == 20)

with as many other values are needed to build up a frequency table,
but is there a simpler way in R version 1.8.1?

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I.White
ICAPB, University of Edinburgh
Ashworth Laboratories, West Mains Road
Edinburgh EH9 3JT
Fax: 0131 650 6564  Tel: 0131 650 5490
E-mail: iwhite at staffmail.ed.ac.uk