test Durbin for missing in errorsarlm

r-spatial · May 31, 2024 · be854d6 · be854d6
1 parent 564fc66
commit be854d6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/R/ML_models.R b/R/ML_models.R
@@ -42,7 +42,7 @@ errorsarlm <- function(formula, data = list(), listw, na.action, weights=NULL,
         mf <- eval(mf, parent.frame())
         mt <- attr(mf, "terms")
         if (attr(mt, "intercept") == 1 && !any(attr(mt, "factors") == 1) &&
-            (is.formula(Durbin) || isTRUE(Durbin))) {
+            (!missing(Durbin)) && (is.formula(Durbin) || isTRUE(Durbin))) {
             warning("intercept-only model, Durbin invalid and set FALSE")
             Durbin <- FALSE
         }