difftime-class

<p>Register old-style (a.k.a. 'S3') class as a formally defined class.</p>

classes

Keep track of dates in terms of fractional calendar months
per Damien Laker "Time Calculations for Annualizing Returns: the Need for Standardization",
The Journal of Performance Measurement, 2008.
Model dates as of close of business.
Perform date arithmetic in units of "months" and "years".
Allow "infinite" dates to model "ultimate" time.

Dan Murphy

mondate

difftime-class: Class "difftime"

Description

Arguments

Author