nonstationary
- adjective
- /nɑnˈsteɪʃənˌɛri/
:
no estacionario
- When conducting experiments, it is crucial to account for nonstationary variables, as they can affect the reliability of the results.
- nonstationary price
- nonstationary price series
- nonstationary case
Examples
-
Economists often struggle with nonstationary data since traditional analysis methods may not yield valid conclusions.
-
Second, if the data is nonstationary, then when the process changes, only the data relating to the new process should be used.
Academic text (1992) -
Figure 2 demonstrates the worth of flexibility for this nonstationary case.
Academic text (1997) -
We have modified the above heuristic to deal with nonstationary demands.
Academic text (1997) -
Even if the individual price series are nonstationary, their deviations from one another are limited by arbitrage constraints.
Academic text (1993) -
It is well known that many financial time series are nonstationary and that nonstationarity invalidates standard statistical procedures for inference.
Academic text (2001) -
Cointegration theory offers a statistically principled framework for evaluating market linkages across a transmission network when the data may be nonstationary.
Academic text (1993) -
In time series analysis, a nonstationary dataset means that the statistical properties such as mean and variance change over time.
Synonyms
1
7.5
Tends to be different often
Changing over time and not staying the same
Antonyms
How Changing
Surface Forms
Morphology
nonstationary = stationary (transparent) = non + stationary
The word is formed by the productive negating prefix 'non-' added to the adjective 'stationary', so its meaning is a straightforward negation.
Etymology
The word nonstationary is made from non- meaning 'not' and stationary, which comes from an old word for 'stand' or 'stay in one place'. So nonstationary means 'not standing still', a helpful image for things that change or are not fixed over time.