fConvertTimeToPosix: fConvertTimeToPosix

In REddyProc: Post Processing of (Half-)Hourly Eddy-Covariance Measurements

fConvertTimeToPosix

Description

Convert different time formats to POSIX

Usage

fConvertTimeToPosix(Data.F, TFormat = TFormat.s, 
    Year = if (!missing(Year.s)) Year.s else "none", 
    Month = if (!missing(Month.s)) Month.s else "none", 
    Day = if (!missing(Day.s)) Day.s else "none", 
    Hour = if (!missing(Hour.s)) Hour.s else "none", 
    Min = if (!missing(Min.s)) Min.s else "none", 
    TName = if (!missing(TName.s)) TName.s else "DateTime", 
    TFormat.s, Year.s, Month.s, Day.s, Hour.s, 
    Min.s, TName.s, tz = "GMT")

Arguments

Data.F	Data frame with time columns to be converted
TFormat	Abbreviation for implemented time formats, see details
Year	Column name of year
Month	Column name of month
Day	Column name of day
Hour	Column name of hour
Min	Column name of min
TName	Column name of new column
TFormat.s	deprecated
Year.s	deprecated
Month.s	deprecated
Day.s	deprecated
Hour.s	deprecated
Min.s	deprecated
TName.s	deprecated
tz	timezone used to store the data. Advised to keep GMT to avoid daytime shifting issues

Details

The different time formats are converted to POSIX (GMT) and a 'TimeDate' column is prefixed to the data frame

Implemented time formats:

YDH

year, day of year, hour in decimal (e.g. 1998, 1, 10.5). The day (of year) format is (1-365 or 1-366 in leap years). The hour format is decimal time (0.0-23.5).

YMDH

year, month, day of month, hour in decimal (e.g. 1998, 1, 1, 10.5) The month format is (1-12) The day (of month) format is (1-31).

YMDHM

year, month, day of month, integer hour, minute (e.g. 1998, 1, 1, 10, 30) The hour format is (0-23) The minute format is (0-59)

Value

Data frame with prefixed POSIX time column.

Author(s)

AMM, TW Department for Biogeochemical Integration at MPI-BGC, Jena, Germany <[e-mail]> [cph], Thomas Wutzler <[e-mail]> [aut, cre], Markus Reichstein <[e-mail]> [aut], Antje Maria Moffat <[e-mail]> [aut, trl], Olaf Menzer <[e-mail]> [ctb], Mirco Migliavacca <[e-mail]> [aut], Kerstin Sickel <[e-mail]> [ctb, trl], Ladislav <U+0160>igut <[e-mail]> [ctb]

See Also

help_DateTimes

Examples

# See unit test in test_fConvertTimeToPosix for example

REddyProc documentation built on May 29, 2024, 12:10 p.m.