Determines Water Year from a date field
WY(date, WY.type = "FL")
date | Date in as.POSIXct or as.Date format |
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WY.type | Specifies Federal ("Fed") or Florida ("FL") water years |
Returns water year value based on Federal (Starts Oct 1) or Florida (Starts May 1),
#> [1] 2016 2016 2016