[R-sig-finance] problem when both fCalendar and chron packages are loaded

[Gabor Grothendieck]

If you don't need the shift= argument in easter then a workaround
would be:

my.easter <- function(year) structure(.easter.sunday(year), "sdate")

which does not depend on any masked functions.


On 10/12/05, Parlamis Franklin <fparlamis at mac.com> wrote:
> When both the fCalendar and chron packages are loaded, the function
> easter(2005) returns the following object of class sdate:
>
> [1] 'myFinCenter'
> [2] [2015-03-28]
>
> If the chron package is unloaded, the result becomes correct.  this
> must be related to the following message which appears when attaching
> chron:
>
>     "The following object(s) are masked from package:fCalendar :
>
>      day.of.week leap.year month.day.year"
>
> It may also be related to sometimes differing origins for the julian
> calendar functions (I have alternately seen 1960-01-01 and 1970-01-01
> as the origin).
>
> I cc'd the chron package maintainer.  I am hoping Diethelm, the
> fCalendar package manager, picks up this list as well.
>
> Franklin Parlamis
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