Only errors that were preceded by a 1 s period of error-free performance (and free of feedback manipulations) were analyzed.
Early in the second half there was a farcical period of play, where error followed error and knock-on followed knock-on; neither side able to show any sort of composure.
Finally, similar to the overall initial variability term (sigma_{{0{text{m}}}} left( theta right)) (see Eq. 20), an overall error is defined as the average over all periods of the error term: varepsilon_{{{text{GRNN}},{text{m}}}} left( theta right) = frac{1}{{n_{T} }}mathop sum limits_{i = 1}^{{n_{T} }} varepsilon_{text{GRNN}} left( {theta,T_{i} } right) (26).
Since the signature of core flows are relatively weak at short periods, accurate estimates of error covariances are required to assess the reliability of the reconstructed motions.
In the evolution of this landscape, there must have been a long period of trial and error as plants attempted the colonization of the high and wind-swept land.
While it is generally understood that the grape does better in cool climates than in hot ones, and that certain types of soil and certain clones of the grape do better than others, pinot noir seems to require a prolonged period of trial and error to determine the best combinations.
Sleeping with someone for the first time can be nerve-racking, but you'd never know that from watching films, where everyone seems to automatically know exactly what the other person wants without having to embark upon a long and unfulfilling period of trial and error, usually with the aid of a corresponding checklist on a clipboard.
Like any science experiment, it took a period of trial and error, and a while to perfect the technique.
Other researchers have reported crows solving puzzles that require knowledge of support without going through a period of trial and error.
Yet the major challenge to the implementation of planned adaptation is that it is likely to require a long period of trial and error, whereas autonomous adaptation strategies are an immediate option for many vulnerable people (Pradhan et al. 2012).
Vernacular architectures, built by people whose design decisions are influenced by traditions in their culture, have been gleaned through a long period of trial and error and the ingenuity of local builders who possess specific knowledge about their place on the planet, and thus are valuable in promoting climate-specific passive building technologies to modern buildings.
