R devel - Jul 2008 - Interface between fractal geometry and statistics

Are there any packages that help with statistical analysis in situations where 
fractal geometry is relevant?  Perhaps something that supports computation of 
fractal related statistics, such as the Hurst exponent or fractal dimension?  
Or perhaps which support obvious tasks such as taking samples from a dataset 
at different levels of granularity (such as sampling spatial data at cm, m, km 
spatial resolution, or sampling daily time series at weekly, monthly, quaterly 
or annual resolution)?

Thanks

Ted

RSiteSearch('fractal', 'fun') returned 68 hits for me just now.
Might any of those be helpful? 

      Spencer

Ted wrote:
> Are there any packages that help with statistical analysis in situations
where
> fractal geometry is relevant?  Perhaps something that supports computation
of
> fractal related statistics, such as the Hurst exponent or fractal
dimension?
> Or perhaps which support obvious tasks such as taking samples from a
dataset
> at different levels of granularity (such as sampling spatial data at cm, m,
km
> spatial resolution, or sampling daily time series at weekly, monthly,
quaterly
> or annual resolution)?
>
> Thanks
>
> Ted
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>

2008/7/4 Ted <r.ted.byers at gmail.com>:
> Are there any packages that help with statistical analysis in situations
where
> fractal geometry is relevant?  Perhaps something that supports computation
of
> fractal related statistics, such as the Hurst exponent or fractal
dimension?
tseriesChaos has functions for estimating correlation dimension on an
observed (long) time series.
> Or perhaps which support obvious tasks such as taking samples from a
dataset
> at different levels of granularity (such as sampling spatial data at cm, m,
km
> spatial resolution, or sampling daily time series at weekly, monthly,
quaterly
> or annual resolution)?
For time series, look for 'aggregate'.

f.
>
> Thanks
>
> Ted
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>


-- 
Antonio, Fabio Di Narzo
Ph.D. student at
Department of Statistical Sciences
University of Bologna, Italy