[R] Changing date format

[PIKAL Petr]

Hi

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Frederic Ntirenganya
> Sent: Thursday, October 09, 2014 1:32 PM
> To: Jim Lemon
> Cc: r-help at r-project.org
> Subject: Re: [R] Changing date format
>
> This idea substract 1 for the all column which is not what i want.
>
> We know that the leap years have 366 days. I don't need to change
> anything on them
>
> the non-leap years have 365 days. This is what i want to change to be
> 366 days rather than 365 days.

But this is a question of calendar reform not R. I must admit it would be a tough job as leap day is needed to stay in tune with solar year. Your suggestion would quickly result in out of sync with the Sun.

Regards
Petr

>
> On Thu, Oct 9, 2014 at 1:07 PM, Jim Lemon <jim at bitwrit.com.au> wrote:
>
> > On Thu, 9 Oct 2014 12:30:57 PM Frederic Ntirenganya wrote:
> > > Hi Lemon,
> > >
> > > I am using the code you sent. It's correct for the leap years.
> > > What I want to do is to have both leap  and no-leap years to have
> > > 366
> > days.
> > > that means the 1st March is day 61 of each year.
> > > This will help me to link it with Instat for climatic data
> analysis.
> > >
> > Are you sure that the Start and End day of year numbers haven't
> > already been corrected for leap years? If not, you can correct both
> > for all years like this:
> >
> > Samaru$Start<-Samaru$Start - Samaru$Start > 60) Samaru$End<-
> Samaru$End
> > - Samaru$End > 60)
> >
> > as you don't want to shift the dates before Feb 29.
> >
> > Jim
> >
> >
>
>
> --
> Frederic Ntirenganya
> Maseno University,
> Kenya.
> Mobile:(+254)718492836
> Email: fredo at aims.ac.za
> https://sites.google.com/a/aims.ac.za/fredo/
>
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>
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