Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
Global Envelope Tests for Spatial Processes. / Myllymäki, Mari; Mrkvička, Tomáš; Grabarnik, Pavel; Seijo, Henri; Hahn, Ute.
I: Journal of the Royal Statistical Society, Series B (Statistical Methodology), Bind 79, Nr. 2, 20.03.2017, s. 381-404.Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
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TY - JOUR
T1 - Global Envelope Tests for Spatial Processes
AU - Myllymäki, Mari
AU - Mrkvička, Tomáš
AU - Grabarnik, Pavel
AU - Seijo, Henri
AU - Hahn, Ute
PY - 2017/3/20
Y1 - 2017/3/20
N2 - Envelope tests are a popular tool in spatial statistics, where they are used in goodness-of-fit testing. These tests graphically compare an empirical function T(r) with its simulated counterparts from the null model. However, the type I error probability α is conventionally controlled for a fixed distance r only, whereas the functions are inspected on an interval of distances I. In this study, we propose two approaches related to Barnard’s Monte Carlo test for building global envelope tests on I: (1) ordering the empirical and simulated functions based on their r-wise ranks among each other, and (2) the construction of envelopes for a deviation test. These new tests allow the a priori selection of the global α and they yield p-values. We illustrate these tests using simulated and real point pattern data.
AB - Envelope tests are a popular tool in spatial statistics, where they are used in goodness-of-fit testing. These tests graphically compare an empirical function T(r) with its simulated counterparts from the null model. However, the type I error probability α is conventionally controlled for a fixed distance r only, whereas the functions are inspected on an interval of distances I. In this study, we propose two approaches related to Barnard’s Monte Carlo test for building global envelope tests on I: (1) ordering the empirical and simulated functions based on their r-wise ranks among each other, and (2) the construction of envelopes for a deviation test. These new tests allow the a priori selection of the global α and they yield p-values. We illustrate these tests using simulated and real point pattern data.
U2 - 10.1111/rssb.12172
DO - 10.1111/rssb.12172
M3 - Journal article
VL - 79
SP - 381
EP - 404
JO - Journal of the Royal Statistical Society, Series B (Statistical Methodology)
JF - Journal of the Royal Statistical Society, Series B (Statistical Methodology)
SN - 1369-7412
IS - 2
ER -