In addition, the interactions between the processes of erosion and corrosion have only been evaluated for a limited range of conditions, despite the fact that erosion corrosion occurs over a wide range of variables in practice.
The Gaussian copula, commonly used to describe the dependence structure among variables in practice, produces only one of the many possible solutions of the system reliability and the calculated probability of failure may be severely biased.
Although it has been proposed a symbolic dynamic programming algorithm for MDP-IPs (called SPUDD-IP) that can solve problems up to 22 state variables, in practice, solving MDP-IP problems is time-consuming.
However, we would generally not recommend categorising continuous variables in practice.
6, 7 Ideally, CPRs should be based on a small number of variables – in practice, few variables with strong effects usually explain most of the variance and account for most of the prognostic power.
Adjusting for additional variables can help to remove some of the bias introduced by the uncontrolled U variables by effectively converting them to controlled L variables (in practice, U variables may actually be measured, but just not initially considered as potential confounders by the investigator)—for example, adjusting for other SES variables beyond education.
Secondly, the overall PSF is more variable, because in practice the focal plane of the objective lens and the center of the light sheet are not perfectly aligned.
Unfortunately, the theoretically endless number of time lagged values of one variable would in practice lead to high computational times and identification problems of the network structure and parameters (see [ 21, 22]).
The specific drug regimens were not investigated but are highly variable in clinical practice, including different combinations of medication classes and drugs (Bauer et al. 2013a).
