[R-SIG-Finance] [R-sig-finance] Date from csv as date for ts

Jeff Ryan jeff.a.ryan at gmail.com
Tue May 6 17:36:30 CEST 2008

Take a look at the 'zoo' or 'xts' packages:



'xts' extends zoo - so you get all the goodness of zoo, and it adds some
time-specific functionality.

Either would be a good choice/start.

A working sample might let me provide a more direct answer.


On Tue, May 6, 2008 at 10:17 AM, R at Nabble <vlanschot at yahoo.com> wrote:
>  Apologies if this has been answered elsewhere, but I couldn't find it.
>  Basically, I dump securities' return- data in a csv-file with 3 columns:
>  Name, Date, and Returns. In other words, the Date column contains multiple
>  entries for each date, namely one for each security. I figured out how to
>  extract these dates in one vector with strings from "31/01/2000" to
>  31/03/2008", which I then transformed via the as.Date function. I
>  subsequently created a return-matrix via cbind for each security.
>  My question/problem is, I have been unable to use the date-vector as
>  date-input for my ts-object. Looking at the smallcap.ts-example on page 14
>  of the fPortfolio Package pdf, I'd like to somehow combine my Date-vector
>  with my return-matrix into one large matrix for input in fPortfolio. Using
>  cbind, etc. leads to errors.
>  Clearly I'm on a steep learning curve, so any help appreciated.
>  Thx,
>  R at N
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