[R-SIG-Finance] garch vs garchFit - minimum sample size
Yohan Chalabi
chalabi at phys.ethz.ch
Tue Feb 19 21:09:00 CET 2008
>>>> "SG" == Spencer Graves <spencer.graves at pdf.com>
>>>> on Fri, 15 Feb 2008 07:51:22 -0800
SG> If you haven't already, could you please add descriptions of the
SG> arguments delta, skew and shape to the help page: How are
SG> they defined,
SG> e.g., relative to what distribution -- and which parameterization
SG> of
SG> that distribution? For example, are these passed to documented R
SG> function(s)? Also or alternatively, can you site a relevant
SG> Wikipedia
SG> article?
SG>
SG> In particular, can Student's t be obtained as a special case? I
SG> need this for my work with the FinTS package.
Hi Spencer,
Please have a look at the help pages of the dev-version of fGarch
(https://svn.r-project.org/Rmetrics/trunk/fGarch). The
paragraph "GARCH Processes with non-normal distributions"
in ?garchFit presents an example with Student's t conditional
distribution.
Yohan
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