[R-SIG-Finance] Timeseries data, lattice, and model formulas?

Gabor Grothendieck ggrothendieck at gmail.com
Fri Jul 6 15:35:41 CEST 2007

On 7/6/07, icosa atropa <icos.atropa at gmail.com> wrote:
> > Don't know what you are looking for with respect to factors but if you create
> > a zoo object from a factor it remembers where it came from:
> Thanks for the reply.  I need to read up on dynlm.

To use dyn just preface lm, glm, etc. with dyn$

> R.e. factors, I have something that looks like this - the first 3
> columns have identifying info, and are the factors that I give to
> lattice, whereas the last column is the actual timeseries.
> > summary(M.full)
>    unit_id  well_num              sampled_on                      dtw_m
>  M1     :5   N:5        Min.   :2005-08-04 15:30:00    Min.   :-1.571
>  M2     :0   S:0       1st Qu.:2005-08-04 15:45:00    1st Qu.:-1.570
> Would the most logical way to use zoo be to create an object for each
> element in the factor matrix, i.e. M1N, M1S, M2N, M2S, ... , and
> create a list or environment of the objects?
> Thanks!
> christian

Please provide something reproducible and show what you want to do without

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