Set 'self.fold_len' to protected.

Troubled_Cell_Detector.py

@@ -318,23 +318,23 @@ class Boxplot(WaveletDetector):
         self.function_name = 'Boxplot'
 
         # Unpack necessary configurations
-        self.fold_len = config.pop('fold_len', 16)
+        self._fold_len = config.pop('fold_len', 16)
         self._whisker_len = config.pop('whisker_len', 3)
 
     def _get_cells(self, multiwavelet_coeffs, projection):
         indexed_coeffs = [[multiwavelet_coeffs[0, i], i]for i in range(self._num_coarse_grid_cells)]
 
-        if self._num_coarse_grid_cells < self.fold_len:
-            self.fold_len = self._num_coarse_grid_cells
+        if self._num_coarse_grid_cells < self._fold_len:
+            self._fold_len = self._num_coarse_grid_cells
 
-        num_folds = self._num_coarse_grid_cells//self.fold_len
+        num_folds = self._num_coarse_grid_cells//self._fold_len
         troubled_cells = []
 
         for fold in range(num_folds):
-            sorted_fold = sorted(indexed_coeffs[fold * self.fold_len:(fold+1) * self.fold_len])
+            sorted_fold = sorted(indexed_coeffs[fold * self._fold_len:(fold+1) * self._fold_len])
 
-            boundary_index = self.fold_len//4
-            balance_factor = self.fold_len/4.0 - boundary_index
+            boundary_index = self._fold_len//4
+            balance_factor = self._fold_len/4.0 - boundary_index
 
             first_quartile = (1-balance_factor) * sorted_fold[boundary_index-1][0] \
                 + balance_factor * sorted_fold[boundary_index][0]