poisson_statistic

<p>A <code>data.table</code> with columns <code>zone, duration, count,
mu, relrisk</code>. The columns <code>count</code> and <code>mu</code> contain the sums
of the counts and mus for the locations inside each zone and up to the
given duration. The column <code>relrisk</code> contains the maximum likelihood
estimate for the relative risk for each zone-duration combination.</p>

table

<p>This function calculates the logarithm of the expectation-based Poisson 
statistic for each space-time window, given already calculated relative risks
and aggregate counts and mus.</p>

internal

Detection of anomalous space-time clusters using the scan
statistics methodology. Focuses on prospective surveillance of data streams,
scanning for clusters with ongoing anomalies. Hypothesis testing is made
possible by the generation of Monte Carlo p-values.

poisson_statistic: Calculate the expectation-based Poisson statistic for each space-time window.

Description

Usage

Arguments

Value