| seq.dates {chron} | R Documentation |
Generate a regular sequence of dates.
seq.dates(from, to, by = "days", length., ...)
from |
starting date; it can be a chron or dates object, a
character string, e.g., "05/23/91", or a Julian date. |
to |
ending date, like from. |
by |
either a numeric value or one of the valid strings
"days", "weeks", "months", or "years". |
length. |
optional number of elements in the sequence. |
... |
further arguments to be passed to or from methods. |
a sequence with values (form, from + by,
from + 2*by, ..., to) of class
class(from) and origin origin(from).
Note that from must be less than or equal to the argument
to.
seq.dates("01/01/92", "12/31/92", by = "months")
# [1] 01/01/92 02/01/92 03/01/92 04/01/92 05/01/92 06/01/92
# [7] 07/01/92 08/01/92 09/01/92 10/01/92 11/01/92 12/01/92
end.of.the.month <- seq.dates("02/29/92", by = "month", length = 15)
end.of.the.month
# [1] 02/29/92 03/31/92 04/30/92 05/31/92 06/30/92 07/31/92
# [7] 08/31/92 09/30/92 10/31/92 11/30/92 12/31/92 01/31/93
# [13] 02/28/93 03/31/93 04/30/93