The number of clusters chosen for MEHP and MBP were three and two, respectively.
The number of clusters was chosen heuristically based on the elbow method, which aims at maximizing the amount of variance explained while minimizing the number of clusters chosen.
In the first stage, clusters were selected using proportional to population size sampling, with 10 clusters chosen from each township.
Nevertheless, as cluster analysis was insensitive to the number of clusters chosen, this effect may be small.
Surprisingly, the number of clusters chosen by all the combinations of descriptors and datasets was 135, as this gave the largest decrease in the avg-s.
Although the number of clusters chosen stongly influences the output of k-means clustering algorithms and is usually statistically optimised, clustering is not a final goal of our analysis in this case.
The number of initial clusters chosen was 30 as this was the lowest number of clusters to allow a minimal correlation coefficient of R = 0.7 for any feature profile in its respective cluster.
The project plans to introduce a two and a half year programme of interventions in 73 of the clusters, chosen at random, covering approximately 40,000 population with the remaining 73 clusters forming a control group.
The film, set in the airborne coffin of the fourth plane to take off on 11 September, is the story of around 40 passengers, of whom a cluster choose to fight against personal and national disaster.
The authors therefore show that, from each of the clusters of DCNs, only a fixed number of neurons, inversely proportional to the size of the cluster, choose to target the medulla rather than the lobula.
