[Rd] seq.Date requires by
ggrothendieck at myway.com
Sat Dec 4 03:42:37 CET 2004
Don't know the answer to your question but note
that chron can do it without by=.
xD <- as.Date("1996-01-01")
yD <- as.Date("1996-12-01")
xc <- chron(xD)
yc <- chron(yD)
# Also one can do this in either chron or Date:
Date: Fri, 3 Dec 2004 11:29:08 -0800
From: Vadim Ogranovich <vograno at evafunds.com>
To: <r-devel at stat.math.ethz.ch>
Subject: [Rd] seq.Date requires by
What is the reason for seq.Date to require the 'by' argument and not to
default it to 1 in the example below?
> seq(from=as.Date("1996-01-01"), to=as.Date("1996-12-01"))
Error in seq.Date(from = as.Date("1996-01-01"), to =
exactly two of `to', `by' and `length.out' / `along.with' must be
This is R-1.9.1, but I haven't seen anything pertaining in the release
notes of 2.0.x.
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