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Lag operator information


In time series analysis, the lag operator (L) or backshift operator (B) operates on an element of a time series to produce the previous element. For example, given some time series

then

for all

or similarly in terms of the backshift operator B: for all . Equivalently, this definition can be represented as

for all

The lag operator (as well as backshift operator) can be raised to arbitrary integer powers so that

and

and 24 Related for: Lag operator information

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Lag operator

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In time series analysis, the lag operator (L) or backshift operator (B) operates on an element of a time series to produce the previous element. For example...

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Shift operator

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time series analysis, the shift operator is called the lag operator. Shift operators are examples of linear operators, important for their simplicity...

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Order of integration

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(1-L)^{d}X_{t}\ } is a stationary process, where L {\displaystyle L} is the lag operator and 1 − L {\displaystyle 1-L} is the first difference, i.e. ( 1 − L )...

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Autoregressive model

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in the backshift operator applied to ε t {\displaystyle \varepsilon _{t}} has an infinite order—that is, an infinite number of lagged values of ε t {\displaystyle...

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Autoregressive integrated moving average

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_{i}L^{i}\right)\varepsilon _{t}\,} where L {\displaystyle L} is the lag operator, the α i {\displaystyle \alpha _{i}} are the parameters of the autoregressive...

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Unit root

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(1-\lambda _{1}L)(1-\lambda _{2}L)y_{t}=\varepsilon _{t}} where L is a lag operator that decreases the time index of a variable by one period: L y t = y...

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List of statistics articles

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L-moment Labour Force Survey Lack-of-fit sum of squares Lady tasting tea Lag operator Lag windowing Lambda distribution – disambiguation Landau distribution...

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Lagged Fibonacci generator

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A Lagged Fibonacci generator (LFG or sometimes LFib) is an example of a pseudorandom number generator. This class of random number generator is aimed at...

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IRC

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initial DALnet people were "ops in #StarTrek sick from the constant splits/lags/takeovers/etc". DALnet quickly offered global WallOps (IRCop messages that...

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Autocovariance

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_{XX}(\tau ),} where τ = t 2 − t 1 {\displaystyle \tau =t_{2}-t_{1}} is the lag time, or the amount of time by which the signal has been shifted. The autocovariance...

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Hyperoperation

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way as to agree with the entire hyperoperation sequence, except for the lag in the indexing: H n ( a , b ) = a ↑ n − 2 b  for  n ≥ 0. {\displaystyle...

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Quantum entanglement

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angle between the polarizer settings and decreased exponentially with time lag between emitted photons. Kocher's apparatus, equipped with better polarizers...

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SEAL Team season 4

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as Master Chief Special Warfare Operator[note A] Jason Hayes a.k.a. Bravo 1/1B Max Thieriot as Special Warfare Operator Second Class Clay Spenser a.k.a...

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Telerobotics

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system, the lag in the response to movements, the visual representation. Any issues such as, inadequate resolution, latency of the video image, lag in the...

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Torque wrench

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tool used to apply a specific torque to a fastener such as a nut, bolt, or lag screw. It is usually in the form of a socket wrench with an indicating scale...

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Autocorrelation

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similarity between observations of a random variable as a function of the time lag between them. The analysis of autocorrelation is a mathematical tool for...

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Corner detection

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operators, which also constitute models of receptive fields of non-lagged vs. lagged neurons in the LGN: ∂ t , n o r m ( ∇ ( x , y ) , n o r m 2 L ) =...

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International Certificate of Competence

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2013-11-29. Trafi: Internationellt behörighetsbrev för förare av fritidsbåt Lag om fartygspersonal och säkerhetsorganisation för fartyg (29.12.2009/1687)...

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List of Keys to the City in the United States

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the City!. YouTube: Nothin' But Lag. 2020-08-27. Guillermo Floyd Gomez (14 July 2022). "An Interview With NothinButLag". 70-mm Publishing. Retrieved 18...

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Fourier transform

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time-lag τ elapsing between the values of f to be correlated. For most functions f that occur in practice, R is a bounded even function of the time-lag τ...

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Vodafone Idea

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Indian mobile network operator with its headquarters based in Mumbai and Gandhinagar. It is an all-India integrated GSM operator offering 2G, 3G, 4G, LTE...

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Thuraya

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implies high round trip times from satellite to earth leading to a noticeable lag being present during voice calls. Voice communications with satellite phones...

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Recurrence relation

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sector, the labor market, etc.) in which some agents' actions depend on lagged variables. The model would then be solved for current values of key variables...

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Airbus A380

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since been written off." Airbus Considers Ditching A380 in 2018 as Buyers Lag on YouTube (Bloomberg, posted to YouTube on 11 December 2014) Quote: ".....

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