as.date

0th

Percentile

Coerce Data to Dates

Converts any of the following character forms to a Julian date: 8/31/56, 8-31-1956, 31 8 56, 083156, 31Aug56, or August 31 1956.

Keywords
chron
Usage
as.date(x, order = "mdy", ...)
Arguments
x
input data vector.
order
if x is character, defines the order in which the terms are assumed to appear in a xx/xx/xx date. The default is month/day/year; any permutation of mdy is legal.
...
if x is character, then any other arguments from mdy.date() can be used as well.
Details

If x is numeric, then floor(x) is returned, e.g., as.date(35) is the same as as.date(35.2) and gives Feb 2, 1960. If x is character, the program attempts to parse it.

Value

  • For each date, the number of days between it and January 1, 1960. The date will be missing if the string is not interpretable.

See Also

mdy.date, date.mmddyy, date.ddmmmyy

Aliases
  • as.date
Examples
as.date(c("1jan1960", "2jan1960", "31mar1960", "30jul1960"))
Documentation reproduced from package date, version 1.2-10, License: Unlimited distribution for noncommercial use.

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