Generate Chron or Dates Sequences
Usage
seq.dates(from, to, by = "days", length.)
Arguments
from
|
starting date; it can be a chron or dates objet, 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.
|
Value
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
.See Also
chron
,
dates
,
cut.dates
Examples
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