What is the actual algorithm that Gretl uses to estimate the Hurst exponent?
Is it the Anis-Lloyd corrected R/S or the DFA?
PG
*Periklis Gogas
<
http://www.econ.duth.gr/personel/dep/gkogkas/index.en.shtml>*
Professor
Economic Analysis and International Economics
Department of Economics
Democritus University of Thrace
Euro Area Business Cycle Network - Fellow
<
http://www.eabcn.org/person/periklis-gogas>
The Rimini Centre for Economic Analysis - Fellow
<
http://www.rcfea.org/component/option,com_frontpage/Itemid,1/>
The Society for Economic Measurement - Member
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http://sem.society.cmu.edu/home.html>
Institute for Nonlinear Dynamical Inference (INDI) - Charter Fellow
<
http://icemr.ru/institute-for-nonlinear-dynamical-inference/>
On Thu, Mar 25, 2021 at 11:03 AM Periklis Gogas <perrygogas(a)gmail.com>
wrote:
Yes, exactly. And by sample size here we do not mean the initial
sample
lets say the 2000 observations I have, but the log_2(2000) I guess, the
number of bins created.
PG
*Periklis Gogas
<
http://www.econ.duth.gr/personel/dep/gkogkas/index.en.shtml>*
Professor
Economic Analysis and International Economics
Department of Economics
Democritus University of Thrace
Euro Area Business Cycle Network - Fellow
<
http://www.eabcn.org/person/periklis-gogas>
The Rimini Centre for Economic Analysis - Fellow
<
http://www.rcfea.org/component/option,com_frontpage/Itemid,1/>
The Society for Economic Measurement - Member
<
http://sem.society.cmu.edu/home.html>
Institute for Nonlinear Dynamical Inference (INDI) - Charter Fellow
<
http://icemr.ru/institute-for-nonlinear-dynamical-inference/>
On Thu, Mar 25, 2021 at 10:04 AM Sven Schreiber <svetosch(a)gmx.net> wrote:
> Am 23.03.2021 um 12:18 schrieb Periklis Gogas:
> > I just saw this thanks! are these treated to create confidence intervals
> > as usual? ie Hurst +/-1.96* standard error?
> >
>
> Well, I'd cautiously say it would be good if you as the researcher had
> some idea about the limiting distributions involved there. I'm not an
> expert in that literature, but my guess would be that typically, yes, it
> would be valid as an asymptotic approximation and almost surely not
> strictly valid in finite samples.
>
> cheers
> sven
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