kmeans

simba/data_processors/cuda/statistics.py

@@ -17,6 +17,10 @@
     from cupyx.scipy.spatial.distance import cdist
 except:
     import numpy as cp
+try:
+   from cuml.cluster import KMeans
+except:
+    from sklearn.cluster import KMeans
 
 from simba.utils.checks import check_int, check_valid_array, check_valid_tuple
 from simba.utils.enums import Formats
@@ -627,3 +631,26 @@ def davis_bouldin(x: np.ndarray,
                 max_ratio = max(max_ratio, ratio)
         db_index += max_ratio
     return db_index / n_labels
+
+
+def kmeans_cuml(data: np.ndarray,
+                k: int = 2,
+                max_iter: int = 300,
+                output_type: Optional[str] = None,
+                sample_n: Optional[int] = None) -> Tuple[np.ndarray, np.ndarray]:
+    """CRAP, SLOWER THAN SCIKIT"""
+
+    check_valid_array(data=data, source=f'{kmeans_cuml.__name__} data', accepted_dtypes=Formats.NUMERIC_DTYPES.value)
+    check_int(name=f'{kmeans_cuml.__name__} k', value=k, min_value=1)
+    check_int(name=f'{kmeans_cuml.__name__} max_iter', value=max_iter, min_value=1)
+    kmeans = KMeans(n_clusters=k, max_iter=max_iter)
+    if sample_n is not None:
+        check_int(name=f'{kmeans_cuml.__name__} sample', value=sample_n, min_value=1)
+        sample = min(sample_n, data.shape[0])
+        data_idx = np.random.choice(np.arange(data.shape[0]), sample)
+        mdl = kmeans.fit(data[data_idx])
+    else:
+        mdl = kmeans.fit(data)
+
+    return (mdl.cluster_centers_, mdl.predict(data))
+

simba/data_processors/freezing_detector.py

@@ -130,5 +130,5 @@ def run(self):
         stdout_success(msg=f'Results saved in {self.save_dir} directory.')
 
 #
-# FreezingDetector(data_dir=r'D:\troubleshooting\mitra\project_folder\csv\outlier_corrected_movement_location',
-#                       config_path=r"D:\troubleshooting\mitra\project_folder\project_config.ini")
+# FreezingDetector(data_dir=r'C:\troubleshooting\mitra\project_folder\csv\outlier_corrected_movement_location',
+#                  config_path=r"D:\troubleshooting\mitra\project_folder\project_config.ini")