GeoLight2TAGS function

Function to write down twilights annotated in GeoLight package data in so-called TAGS format

this function converts combines twilights detected in BAStag to twGeos with raw data and writes them down in TAGS format that can be easily read by get.tags.data

GeoLight2TAGS(raw, gl_twl, threshold, filename = NULL)

Arguments

• raw: original data - dataframe with two columns first column must contain time and second measured light levels
• gl_twl: twilights object from GeoLight
• threshold: threshold value used for twilight definition in GeoLight
• filename: if NULL data.frame in TAGS format will be returned otherwise .csv file in TAGS format will be written

Returns

NULL if filename is provided or TAGS formatted dataframe.

Details

TAGS format returned or written as .csv by this function is a dataframe with columns

• datetime: date and time in ISO 8601 format e.g. 2013-06-16T00:00:11.000Z
• light: light value measured by tag
• twilight: assigned by the software numeric indication of whether the record belongs to sunrise (1), sunset (2) or none of those (0)
• excluded: indication of whether a twilight was excluded during manual inspection (logical, TRUE | FALSE)
• interp: indication of whether the light value at twilight was interpolated (logical, TRUE | FALSE)

The fields excluded and interp may have values of TRUE only for twilight > 0.

See Also

twGeos2TAGS and BAStag2TAGS

Author(s)

Eldar Rakhimberdiev & Simeon Lisovski