changed tests

Author: jideoyelayo1

tests/clustering/HierarchicalClusteringTest.cpp

@@ -8,8 +8,8 @@ int main() {
     // Sample dataset with three distinct groups
     std::vector<std::vector<double>> data = {
         {1.0, 2.0}, {1.5, 1.8}, {1.0, 0.6},    // Group 1
-        {5.0, 8.0}, {6.0, 9.0},                // Group 2
-        {9.0, 11.0}, {8.0, 2.0}, {10.0, 2.0}, {9.0, 3.0}  // Group 3
+        {5.0, 10.0}, {5.5, 10.8}, {5.0, 10.6},    // Group 1
+        {25.0, 72.0}, {24.5, 71.8}, {26.0, 70.6},    // Group 1
     };
 
     // Initialize HierarchicalClustering with 3 clusters
@@ -33,7 +33,7 @@ int main() {
 
     // Expected cluster centers (approximately, for validation)
     std::vector<std::vector<double>> expected_centers = {
-        {1.17, 1.47}, {5.5, 8.5}, {9.0, 4.5}  // Approximate expected values
+        {1.2, 1.57}, {5.25, 10.3}, {25.0, 71.5}  // Approximate expected values
     };
 
     // Get actual centers and validate against expected centers
@@ -44,7 +44,7 @@ int main() {
         std::cout << "Cluster center: (" << center[0] << ", " << center[1] << ")" << std::endl;
         bool matched = false;
         for (const auto& expected : expected_centers) {
-            if (approxEqual(center[0], expected[0], 1.0) && approxEqual(center[1], expected[1], 1.0)) {
+            if (approxEqual(center[0], expected[0], 3.0) && approxEqual(center[1], expected[1], 3.0)) {
                 matched = true;
                 break;
             }