A retrospective space-time scan statistic (8 ) was used to identify statistically significant high-risk spatiotemporal clusters (Technical Appendix).
High- and low-risk clusters were identified by retrospective space-time scans for each year using the Poisson probability model.
This study used retrospective space-time scan analysis combined with the discrete Poisson distribution model to scan for areas with high rates.
Specific cluster detection, i.e. detection of the location and size of any clusters of AEP, was carried out using a retrospective space-time scan statistic [ 17] with a space-time permutation model [ 14].
Space-time interaction clustering of case farms was investigated with a retrospective space-time scan statistic with a space-time permutation model, the space-time K-function and the Jacquez k nearest neighbour (kNN) test.
We used the retrospective space-time permutation model (7 ), which does not require data for population at risk, a key factor given the lack of reliable post-earthquake population data for Haiti (online Technical Appendix, Geospatial Analyses).
In this study, retrospective space-time cluster analysis for higher incidence was used, in which the maximum spatial cluster size was set at 50% of the total population at risk, and the maximum temporal cluster size was set at 50% of the total population at risk to find possible sub-clusters.
In his first show of new work since a 2003 Guggenheim retrospective, he takes space out of the equation.
Installed in an airy, open plan on the Whitney's lofty top floor (Matta-Clark might have liked the space), the retrospective consists of the films, as well as drawings, photographs and some of the architectural pieces he cut out of buildings.
Set inside the pristine, white-walled space, his retrospective offers other questions: In an era of renewed unrest, what is the role of art?
