RUL-86: Solved bug with pruning being executed on rules with only one condition.

Author: agudys

adaa.analytics.rules/build.gradle

@@ -27,7 +27,7 @@ codeQuality {
 }
 
 sourceCompatibility = 1.8
-version = '1.7.16'
+version = '1.7.17'
 
 
 jar {

adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/induction/AbstractFinder.java

@@ -223,6 +223,11 @@ public void prune(
 			final Set<Integer> uncovered) {
 
 		Logger.log("AbstractFinder.prune()\n", Level.FINE);
+
+		if (rule.getPremise().getSubconditions().size() == 1) {
+			return;
+		}
+
 		boolean weighting = (trainSet.getAttributes().getWeight() != null);
 
 		// check preconditions

adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/induction/ClassificationFinder.java

@@ -218,6 +218,10 @@ public int grow(
 	 */
 	public void prune(final Rule rule, final ExampleSet trainSet, final Set<Integer> uncovered) {
 		Logger.log("ClassificationFinder.prune()\n", Level.FINE);
+
+		if (rule.getPremise().getSubconditions().size() == 1) {
+			return;
+		}
 
 		// check preconditions
 		if (rule.getWeighted_p() == Double.NaN || rule.getWeighted_p() == Double.NaN ||

adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/induction/RegressionFinder.java

@@ -338,7 +338,9 @@ protected ElementaryCondition induceCondition(
 					}
 
 					Double [] keys = values2ids.keySet().toArray(new Double[values2ids.size()]);
-		
+					Logger.log("\tChecking attribute " + attr.getName() + ", unique values: " + keys.length + "\n", Level.FINEST);
+
+
 					// check all possible midpoints
 					for (int keyId = 0; keyId < keys.length - 1; ++keyId) {
 						double key = keys[keyId];