RT Journal Article
T1 Divergence-based tests of homogeneity for spatial data
A1 Hobza, Tomáš
A1 Morales, Domingo
A1 Pardo Llorente, Leandro
AB The problem of testing homogeneity in contingency tables when the data are spatially correlated is considered. We derive statistics defined as divergences between unrestricted and restricted estimated joint cell probabilities and we show that they are asymptotically distributed as linear combinations of chi-square random variables under the null hypothesis of homogeneity. Monte Carlo simulation experiments are carried out to investigate the behavior of the new divergence test statistics and to make comparisons with the statistics that do not take into account the spatial correlation. We show that some of the introduced divergence test statistics have a significantly better behavior than the classical chi-square test for the problem under consideration when we compare them on the basis of the simulated sizes and powers.
PB Springer Link
SN 1613-9798
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/33756
UL https://hdl.handle.net/20.500.14352/33756
LA eng
DS Docta Complutense
RD 9 abr 2025