lag model

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• Lag operator — In time series analysis, the lag operator or backshift operator operates on an element of a time series to produce the previous element. For example, given some time series:X= {X 1, X 2, dots },then :, L X t = X {t 1} for all ; t > 1,where L is… …   Wikipedia

• Lag — Payment of a financial obligation later than is expected or required, as in lead and lag. Also, the number of periods that an independent variable in a regression model is held back in order to predict the dependent variable. The New York Times… …   Financial and business terms

• lag — Payment of a financial obligation later than is expected or required, as in lead and lag. Also, the number of periods that an dependent variable in a regression model is held back in order to predict the dependent variable. Bloomberg Financial… …   Financial and business terms

• Model Requirements for the Management of Electronic Documents and Records — MoReq (Model Requirements for the Management of Electronic Documents and Records) ist der europäische Standard für das elektronische Records Management. Er wurde im Rahmen des IDA Programmes der Europäischen Kommission entwickelt und vom DLM… …   Deutsch Wikipedia

• Distributed lag — In statistics and econometrics, a distributed lag model is a model for time series data in which a regression equation is used to predict current values of a dependent variable based on both the current values of an explanatory variable and the… …   Wikipedia

• Statistical model validation — Model validation is possibly the most important step in the model building sequence. It is also one of the most overlooked. Often the validation of a model seems to consist of nothing more than quoting the R 2 statistic from the fit (which… …   Wikipedia

• Autoregressive moving average model — In statistics, autoregressive moving average (ARMA) models, sometimes called Box Jenkins models after the iterative Box Jenkins methodology usually used to estimate them, are typically applied to time series data.Given a time series of data X t …   Wikipedia

• Display lag — is a phenomenon associated with some types of LCD displays, and nearly all types of HDTVs, that refers to latency, or lag measured by the difference between the time a signal is input into a display and the time it is shown by the display. This… …   Wikipedia

• Cobweb model — The cobweb model or cobweb theory is an economic model that explains why prices might be subject to periodic fluctuations in certain types of markets. It describes cyclical supply and demand in a market where the amount produced must be chosen… …   Wikipedia

• Sinusoidal model — In statistics, signal processing, and time series analysis, a sinusoidal model to approximate a sequence Yi is::Y i = C + alphasin(omega T i + phi) + E i where C is constant defining a mean level, α is an amplitude for the sine wave, ω is the… …   Wikipedia

• OSI-model — OSI modellen (Open Systems Interconnection model) er en datakommukationsmodel bestående af 7 lag. Lag 7 applikationslaget (eng: application) Lag 6 præsentationslaget (eng: presentation) Lag 5 sessionslaget (eng: session) Lag 4 transportlaget (eng …   Danske encyklopædi