Table 2

The error matrix to evaluate the predictive accuracy of the model.



Validation Data Set


WNV positive
WNV negative

P-values based on Mahalanobis Distance statistics
More than 0.5
a (24)
b (35)

Less than 0.5
c (7)
d (20)

Note: The components a, b, c and d, stand for frequencies of cases which were/were not predicted by the model and were present/absent in the validation data set.

Ozdenerol et al. International Journal of Health Geographics 2008 7:12   doi:10.1186/1476-072X-7-12