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Overview of Iris dates

Iris dates are designed to provide maximum convenience for handling dates spaced at regular intervals throughout a calendar year.

Iris supports the following date frequencies:

  • yearly
  • half-yearly
  • quarterly
  • monthly
  • weekly
  • daily (with support for business daily frequency)
  • integer (numbered observations)

Categorical list of functions

Dater constructors

Function Description
yy Create yearly dates
hh Create half-yearly dates
qq Create quarterly dates
mm Create monthly dates
ww Create weekly dates
dd Create daily dates
ii Create integer dates (numbered observations)

Converting dates

Function Description
toString Print Iris dates as formatted strings