This is a method for anova for fitted spatial logistic
  regression models (objects of class "slrm", usually obtained
  from the function slrm).
The output shows the deviance differences (i.e. 2 times log
  likelihood ratio), the difference in degrees of freedom, and (if
  test="Chi") the two-sided \(p\)-values for the chi-squared tests.
  Their interpretation is very similar to that
  in anova.glm.