Find the quarter in which a date occurs

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Description

Returns the quarter and year in which a date occurs.

Usage

1

Arguments

date

A vector convertible to POSIXlt. A Date or character is fine.

Value

A numeric vector identifying the quarter that each element of date corresponds to, expressed as a number of years since 1900. Thus Q1-2000 is 100.00, and Q3-2007 is 107.50.

Author(s)

Steven L. Scott stevescott@google.com

Examples

1
2
  Quarter(c("2008-02-29", "2008-04-29"))
  # [1] 108.00 108.25

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