FPGE: Fix exception when no inliers present

stanford-futuredata · Aug 17, 2016 · a030002 · a030002
1 parent a9edfa9
commit a030002
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/core/src/main/java/macrobase/analysis/summary/itemset/FPGrowthEmerging.java b/core/src/main/java/macrobase/analysis/summary/itemset/FPGrowthEmerging.java
@@ -71,7 +71,7 @@ public List<ItemsetResult> getEmergingItemsetsWithMinSupport(List<Datum> inliers
                                                                  double minRatio,
                                                                  // would prefer not to pass this in, but easier for now...
                                                                  DatumEncoder encoder) {
-        if (!combinationsEnabled || inliers.get(0).attributes().size() == 1) {
+        if (!combinationsEnabled || (inliers.size() > 0 && inliers.get(0).attributes().size() == 1)) {
             return getSingletonItemsets(inliers, outliers, minSupport, minRatio, encoder);
         }