In order to take into account potential cluster effects, we used mixed models, where well numbers and dates were included as random effects.
Accordingly, the objective of the present study was to determine the optimal PS-model to account for a potential cluster effect when analysing multicenter observational data.
The potential cluster of birth defects also drew the attention of the federal Environmental Protection Agency, which last week visited Kettleman City, a town of about 1,500 people in rural Kings County.
The characterization and cataloguing all of the potential properties is a daunting task, and the organization of the enormous numbers and varieties of clusters into a useful framework would clarify and instruct potential cluster assemblies and properties.
Table 1 lists the number of potential cluster members of foreshocks for each reference event.
Otherwise the points in the potential cluster will be tested by the second constraint.
If not, the points in the potential cluster will be labeled as moving points.
Data were collected from several different centers, and to account for potential cluster effects, we therefore used a random intercept model.
Fisher's exact test ignoring the potential cluster error in the data was applied to compare the frequency of volumes in both groups which did not require manual registration.
By taking all the other potential cluster centers j' for RP i into account, we can obtain r i, j = s i, j - max j ' ≠ j a i, j ' + s i, j ', (3).
A deadlock is a persistent and circular-wait condition in forming a cluster or a group [8], where each potential cluster head delivers a merging request message to another cluster, and may involve in a deadlock waiting indefinitely for the merging respond from other nodes while not answering other merging requests [21].
