[R-Forge #1751] Remove use of POSIXlt in IDateTime, and add yearquarter() #649
Description
Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link
The coercion to 40 byte POSIXlt will be slowing down month() for example.
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Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link
The coercion to 40 byte POSIXlt will be slowing down month() for example.