Parse cdisc datetime strings as parttime matrix
Source:R/parse_cdisc.R, R/parse_iso8601.R, R/parse_to_parttime_matrix.R
parse_parttime.RdParse cdisc datetime strings as parttime matrix
Parse iso8601 datetime strings as parttime matrix
Parse iso8601 datetime strings as timespan array
Parse a character vector to create a matrix of datetime fields
Usage
parse_cdisc_datetime(x, warn = TRUE, ...)
parse_iso8601_datetime(x, warn = TRUE, ...)
parse_iso8601_datetime_as_timespan(x, ...)
parse_to_parttime_matrix(dates, regex = re_iso8601)Arguments
- x
A
charactervector of iso8601 datetime strings- warn
A
logicalindicating whether to warn when information would be loss when coercing to aparttimematrix.- ...
Additional arguments unused
- dates
character vector of dates to parse for iso8601 components
- regex
A regular expression used for parsing parttime strings. Defaults to a parser for the ISO8601 standard. Should include named capture groups for each datetime field. See Details for more information.
Value
A matrix of capture fields discovered while parsing CDISC-style datetimes.
A matrix of capture fields discovered while parsing ISO8601-style datetimes.
A character matrix of capture fields provided by the provided regular expression
Details
A format regular expression should separate the components of a valid datetime string, capturing strings which can be coerced to numeric values for each of the nine datetime fields:
yearmonthdayhourminsectzhour
Note
A timespan array is an internal data structure used as the backend representation of timespan objects. It consists of two parttime-like matrices (with the addition of an "inclusive" column), one for the lower- and upper-bounds of the timespan. Collectively, this amounts to a three dimensional array.