DEM/USD Exchange Rate Returns
A time series of intra-day percentage returns of Deutsche mark/US dollar (DEM/USD) exchange rates, consisting of two observations per day from 1992-10-01 through 1993-09-29.
data("MarkDollar")
A univariate time series of 518 returns (exact dates unknown) for the DEM/USD exchange rate.
Journal of Business & Economic Statistics Data Archive.
http://www.amstat.org/publications/jbes/upload/index.cfm?fuseaction=ViewArticles&pub=JBES&issue=96-2-APR
Bollerslev, T., and Ghysels, E. (1996). Periodic Autoregressive Conditional Heteroskedasticity. Journal of Business & Economic Statistics, 14, 139–151.
library("tseries") data("MarkDollar") ## GARCH(1,1) fm <- garch(MarkDollar, grad = "numerical") summary(fm) logLik(fm)
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