"irregular event" is a grammatically correct and usable phrase in written English.
It can be used to describe an event or occurrence that does not happen regularly or as expected. Example: The sudden snowstorm was an irregular event for this time of year, causing chaos and disruptions across the city.
Although the phenomenon of mortality is a stochastic, rare and irregular event, the model fit and validation tests were fairly good.
One such application is Delta's rebooking system that can process thousands of reservations in seconds when an irregular event occurs, allowing passengers to view alternative itineraries on their smartphones.
This scenario is what has often been interpreted to happen when a more salient irregular event elicits a P3a response (Escera et al., 2000).
Are they really irregular events?
Southward autumn invasions (irruptions) by normally northern seed-eating birds are dramatic but apparently irregular events.
Before either "The Wealth of Nations" or "The Theory of Moral Sentiments," Smith used his most famous phrase in "The History of Astronomy," an essay (published posthumously) in which he observed that, in ancient times, the invisible hand of Jupiter was held responsible for "irregular events" of the heavens — comets, eclipses, meteor showers and the like.
The dominant message of this book is that with good analysis we can predict irregular events, or at least protect ourselves from their disastrous consequences.
From a conceptual point of view, it should be noted that classroom dialogue leaves more decisional freedom to students to take part or retreat than many other instructional arrangements, despite irregular events of a teacher adopting cold-calling strategies.
Although crude oil price is basically determined by its supply and demand (Hagen 1994; Stevens 1995), it is also under the influence of many irregular events like stock levels, economic growth, political aspects, political instability, the decisions implemented by OPEC, and further psychological expectations of traders (Yu et al. 2008).
"Climate variability" is the variation around the mean climate and includes seasonal variations and irregular events such as the El Niño/Southern Oscillation.
The bar is owned by four friends, three of whom have hosted an irregular beer event called Les Soirées Maltées on a boat on the Seine for the past few years (the other is Thillou).
