ldhmm (0.1.0)

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Hidden Markov Model for Return Time-Series Based on Lambda Distribution.

http://cran.r-project.org/web/packages/ldhmm

Hidden Markov Model (HMM) based on symmetric lambda distribution framework is implemented for the study of return time-series in the financial market. Major features in the S&P500 index, such as regime identification, volatility clustering, and anti-correlation between return and volatility, can be extracted from HMM cleanly. Univariate symmetric lambda distribution is essentially a location-scale family of power-exponential distribution. Such distribution is suitable for describing highly leptokurtic time series obtained from the financial market. It provides a theoretically solid foundation to explore such data where the normal distribution is not adequate. The HMM implementation follows closely the book: "Hidden Markov Models for Time Series", by Zucchini, MacDonald, Langrock (2016).

Maintainer: Stephen Horng-Twu Lihn
Author(s): Stephen H-T. Lihn [aut, cre]

License: Artistic-2.0

Uses: ecd, moments, xts, zoo, depmixS4, shape, testthat, roxygen2, scales, knitr

Released about 1 month ago.


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