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→time in seconds since 1970 aka linux epochs: new section
:: How could they possible be so badly designed!? miband gives utc!! [[User:DG|DG]] ([[User talk:DG|talk]])
:: How could they possible be so badly designed!? miband gives utc!! [[User:DG|DG]] ([[User talk:DG|talk]])
== time in seconds since 1970 aka linux epochs ==
To save space, Mbient labs records time in seconds since start of recording. When the appropriate app exports the data time is represented as seconds since 1970; basically linux epochs. This is easier to parse, see the 'lubridate' R package. If the CSV file contains errors or complex quote in quote or strings with many special characters like URLs the problem becomes more complicated. When I analyze the data some functions can not work with class time date so I am forced to convert time date back to seconds. This may not apply to all statistical analysis tools but they all internally hold time date as something very close to a double or integer than a character string.