Parse a GGIR Calendar Date

GGIR 2.5-1 writes calendar_date differently in each part: part 2 is an ISO 8601 timestamp with a UTC offset (e.g. 2016-02-26T00:00:00+0100), part 4 is dd/mm/YYYY and part 5 is YYYY-MM-DD. Some contributors' part 2 data is dd/mm/YYYY HH:MM. All of these are returned as the local calendar date, ignoring any UTC offset. Timestamps are first rounded to the nearest minute, because GGIR 2.5-1 stamps the last partial day a few seconds before midnight. Values ending in Z were converted to UTC upstream, so the local date cannot be recovered; these, and values that cannot be parsed, are an error.

parse_ggir_date(x)

Arguments

x

A character vector of dates or timestamps.

Value

A Date vector.

See also

Other helper functions (internal): apply_thresholds(), check_outfiles(), translate_studyname()