[AniMov] FPT help

Adam T. Ford atford at gmail.com
Tue Feb 1 00:04:13 CET 2011


Hello Mathieu and Animovers,

Thank you for that reply and your interest.
You are quite correct, there is a text file produced!
Still,  I am not sure which rows belong to which animals/bursts. Do you know
of a way to carry this information from the ltraj object into the output of
a fipati object?
Since I coerced my original dataframe into a regular timeseries there will
be several observations that the function  sett0 ()  filled in, correct?
This is why I have more rows in the fpt () output then in my raw data.
But Im not sure how to match the rows of the ltraj object with the output of
fpt().
In my mind, it would make sense to write.table () the ltraj object, and
match rows with the fpt() output.
But when I tried I get:
        ERROR:  arguments imply differing number of rows


Thanks again,


Adam

On Mon, Jan 31, 2011 at 3:45 PM, Mathieu Basille
<basille at ase-research.org>wrote:

> Dear Adam,
>
> What's wrong with the output of write.table? I can do the following
> without any error (building upon the example of fpt):
>
> data(puechcirc)
> i <- fpt(puechcirc, seq(300,1000, length=30))
> bla <- do.call(rbind, i)
> write.table(bla, file = "bla.txt")
>
> And the resulting text file is fine.
>
> Mathieu.
>
>
> Le 2011-01-31 17:37, Adam T. Ford a écrit :
> > Hello Animovers,
> >
> > I am having trouble extracting the results of the fpt () function.
> > As far as I can tell, this function is working correctly, all the plots
> > appear in order etc.
> >
> > I have 7 animals with different sampling periods representing a total of
> > 48 'bursts'. So I have 48 dataframes assembled as a "fipati" object.
> > My problem is that I  am not sure how to compile a list of multiple
> > dataframes in way that I can analyze it statistically, or look at it
> > completely.
> >
> > I have tried (for example):
> >
> >    i <- fpt(puechcirc, seq(5, 100, 5), units = "hours")
> >    do.call(rbind, i)
> >
> > and then I tried write.table() to export to a text file but got a series
> > of errors, for example:
> >
> >     23] WARNING: Warning: \U used without hex digits
> >     Warning: '\A' is an unrecognized escape in a character string
> >     Warning: '\D' is an unrecognized escape in a character string
> >     Warning: '\D' is an unrecognized escape in a character string
> >     Warning: '\S' is an unrecognized escape in a character string
> >    Warning: '\J' is an unrecognized escape in a character string
> >
> > Has anyone else worked had success extracting information from a fipati
> > class object?
> >
> > I realize this is porbably a simple "r-rookie" question, but i cannot
> > find what I am looking for in other forums, my r book etc
> >
> > Great work on this package by the way, very helpful and much needed in
> > the ecological community.
> >
> > Adam T. Ford
> > Ph.D. Candidate
> > Department of Zoology
> > University of British Columbia
> > Vancouver, B.C
> >
> > Canada
> >
> >
> >
> >
> > _______________________________________________
> > AniMov mailing list
> > AniMov at faunalia.it
> > http://lists.faunalia.it/cgi-bin/mailman/listinfo/animov
>
> --
>
> ~$ whoami
> Mathieu Basille, Post-Doc
>
> ~$ locate
> Laboratoire d'Écologie Comportementale et de Conservation de la Faune
> + Centre d'Étude de la Forêt
> Département de Biologie
> Université Laval, Québec
>
> ~$ info
> http://ase-research.org/basille
>
> ~$ fortune
> ``If you can't win by reason, go for volume.''
> Calvin, by Bill Watterson.
>
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