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System date in 'yyyymmdd' format, system time in 'yyyymmdd_hhmmss' format plus easy save history
Cdate() Ctime() Save.history()
System date / time in compact formats. These formats are by experience, the most appropriate formats both for file systems and for spreadsheets.
There is also easy 'savehistory' (does not work under macOS R GUI -- but works under macOS Terminal.app R).
savehistory
# NOT RUN { Cdate() Ctime() # } # NOT RUN { ## does not work under macOS GUI Save.history() # }
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