Start learning 50% faster. Sign in now
Time series decomposition involves breaking down a time series into three main components: trend, seasonality, and residuals (also called irregular components). The trend represents the long-term movement of the data, the seasonality captures periodic fluctuations, and the residuals account for random noise or irregular fluctuations that cannot be explained by trend or seasonality. Decomposition is crucial for understanding the underlying structure of the data, and these components can then be modeled separately to improve forecasting accuracy. Time series decomposition is essential for isolating the patterns within data, especially for seasonal data, to apply appropriate forecasting techniques like ARIMA or exponential smoothing. The other options are incorrect because: • Option 1 (ARIMA modeling) is not a decomposition method. ARIMA is a time series forecasting model that can handle trends and seasonality but doesn't break the series into components. • Option 2 (Exponential smoothing) is a forecasting method, not a decomposition technique. • Option 4 (Autoregressive process) refers to a type of model used in time series analysis to capture dependencies in the data, not decomposition. • Option 5 (Fourier transformation) is a technique used for frequency analysis, not decomposition of time series data into trend, seasonality, and residuals.
Select the option that is related to the third term in the same way as the second term is related to the first term.
DFB : GHC :: LNJ : ?
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the letter-cluster that is different.Â
Select the correct option that indicates the arrangement of the given words in the order in which they appear in an English dictionary.
1. Grasp<...
‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of Bâ...
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘MANGROVE’ is arranged in alphabetical order from left...
Arrange the following in the English alphabetical order:
(i) Exploration
(ii) Exploitative
(iii) Exploratory
(iv) ExploitationÂ
WATER : RVOZM :: BOTTLE : ?
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the equation.
180 $ 9 $ 6 ...
How many pairs of letters are there in the word ‘FARMHOUSE’ each of which have as many letters between them (both forward and backward direction) in...
In a certain code language, SAFETY is written as 21 – 3 – 8 – 7 – 22 – 27. How will FRIEND be written in that code language?
...