Joe Kaser wrote:
Thanks for the help. ifelse does the job.
Could you elaborate, or give an example of the "awkward" things ifelse
might do to classed objects?
It strips the class. One thing that usually gets me is this:
> dd <- as.Date(c("2008-1-2","2007-3-21"))
> ifelse(dd>as.Date("2008-1-
r
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> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > project.org] On Behalf Of Joe Kaser
> > Sent: Wednesday, October 15, 2008 2:19 PM
> > To: r-help@r-project.o
Thanks for the help. ifelse does the job.
Could you elaborate, or give an example of the "awkward" things ifelse might
do to classed objects?
On Wed, Oct 15, 2008 at 1:38 PM, Peter Dalgaard <[EMAIL PROTECTED]>wrote:
> Joe Kaser wrote:
>
>> Hello,
>>
>> I've been learning R functions recently and
Joe Kaser wrote:
Hello,
I've been learning R functions recently and I've come across a problem that
perhaps someone could help me with.
# I have a a chron() object of times
hours=chron(time=c("01:00:00","18:00:00","13:00:00","10:00:00"))
# I would like to subtract 12 hours from each time el
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> project.org] On Behalf Of Joe Kaser
> Sent: Wednesday, October 15, 2008 2:19 PM
> To: r-help@r-project.org
> Subject: [R] Condition warning: has length > 1 and only the first
> element will be
Hello,
I've been learning R functions recently and I've come across a problem that
perhaps someone could help me with.
# I have a a chron() object of times
> hours=chron(time=c("01:00:00","18:00:00","13:00:00","10:00:00"))
# I would like to subtract 12 hours from each time element, so I created
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