datestr_to_ymd: transform string to ymd data table.

In hmito/hmRLib: Helper library for numerical analysis with R

transform string to ymd data table.

Description

transform string to ymd data table like data.frame(y=2022,m=5,d=12) or pair of such data.frame. NA will be filled for uncertain elements.

Usage

datestr_to_ymd(
  datestr,
  Date.beg = NULL,
  Date.end = NULL,
  strict = TRUE,
  use.range = TRUE,
  use.jpera = TRUE,
  use.exceldate = FALSE,
  exceldate.origin = as.Date("1904-01-01")
)

Arguments

datestr	target character or sequence of character.
Date.beg	potentially start date; used for validation and estimation.
Date.end	potentially end date; used for validation and estimation.
strict	return NA if read datestr is out of Date.beg-Date.end range
use.range	Allow range date format
use.jpera	Allow Japanese era case (e.g., R2.4.5 or 令和3年4月11日).
use.exceldate	Allow to check the value which is originally excel date but occationally transformed to normal value.
exceldate.origin	Origin of excel date. In default, it is 1900-01-01 if the file is originally created on Windows and 1904-01-01 on Mac.

Value

transformed data.frame

hmito/hmRLib documentation built on March 13, 2024, 9:41 p.m.