[R-SIG-Finance] Problem with the timeDate function

[Moshe Olshansky]

Hello,

I am also new to Rmetrics so take what I say with
caution.
The string "1990.01" is not a valid date - you must
add a day also (even if you do not care about the day
add a dummy one, let say 1, so that you date is
"1990.01.01"). This is a valid date but then you have
another problem (as indicated by your error message) -
if you specify date only then the format is assumed to
be "%Y-%m-%d" and so a period (.) can not be a
separator. So you can either specify the date as
"1990-01-01" or supply a valid time as well, i.e.
timeDate("1990.02.01.00.00.01",format="%Y.%m.%d.%H.%M.%S").

Regards,

Moshe.
 
--- Strong <strongthinking at gmail.com> wrote:

> 
> Dear All
> 
> I am a beginner of Rmetrics.  It is the first time I
> posts on the mailing list. 
> 
> I am having a problem with the use of timeDate
> function. 
> 
> I tried to use timeDate function in the fCalendar
> package to convert a character string of date to
> into the timeDate object.
> 
> My script is something like the followings:
> 
> < date <- c("1990.01", "1990.02")
> 
> < date.td <- timeDate(date, format="%Y.%m")
> 
> And then, I got the following error message:
> 
> Error in if (sum(lt$sec + lt$min + lt$hour) == 0)
> isoFormat = "%Y-%m-%d" : 
> 	missing value where TRUE/FALSE needed
> In addition: Warning message:
> Unknown Format Specification in:
> .whichFormat(charvec) 
> 
> I don't know what's wrong with my format
> specification.  It seems the reason is I am not
> using the standard iso format,  although I do
> believe the flexible specification of time format is
> allowed by the timeDate function just like in
> S-Plus.
> 
> Can anyone help me?
> 
> Thanks in advance.
> 
> 
> Strong Chen
> phd Student,  Graduate School of Commerce and
> Management;
> Hitotusbashi University, Tokyo, Japan
> 
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