1 files changed, 38 insertions, 10 deletions
diff --git a/src/argaze/GazeAnalysis/Basic.py b/src/argaze/GazeAnalysis/Basic.py
index d6a8ca1..03b2878 100644
--- a/src/argaze/GazeAnalysis/Basic.py
+++ b/src/argaze/GazeAnalysis/Basic.py
@@ -22,17 +22,31 @@ class ScanPathAnalyzer(GazeFeatures.ScanPathAnalyzer):
 
         super().__init__()
 
-        self.__length = 0
+        self.__steps_number = 0
+        self.__step_fixation_durations_average = 0
 
     def analyze(self, scan_path: GazeFeatures.ScanPathType):
         """Analyze scan path."""
 
-        self.__length = len(scan_path)
+        self.__steps_number = len(scan_path)
+
+        sum_fixation_durations = 0
+
+        for scan_step in scan_path:
+
+            sum_fixation_durations += scan_step.fixation_duration
+
+        self.__step_fixation_durations_average = sum_fixation_durations / self.__steps_number
 
     @property
-    def length(self) -> float:
+    def steps_number(self) -> float:
 
-        return self.__length
+        return self.__steps_number
+
+    @property
+    def step_fixation_durations_average(self) -> float:
+
+        return self.__step_fixation_durations_average
     
 @dataclass
 class AOIScanPathAnalyzer(GazeFeatures.AOIScanPathAnalyzer):
@@ -42,14 +56,28 @@ class AOIScanPathAnalyzer(GazeFeatures.AOIScanPathAnalyzer):
 
         super().__init__()
 
-        self.__length = 0
+        self.__steps_number = 0
+        self.__step_fixation_durations_average = 0
 
-    def analyze(self, scan_path: GazeFeatures.ScanPathType):
-        """Analyze scan path."""
+    def analyze(self, aoi_scan_path: GazeFeatures.ScanPathType):
+        """Analyze aoi scan path."""
+
+        self.__steps_number = len(aoi_scan_path)
+
+        sum_fixation_durations = 0
+
+        for aoi_scan_step in aoi_scan_path:
+
+            sum_fixation_durations += aoi_scan_step.fixation_duration
+
+        self.__step_fixation_durations_average = sum_fixation_durations / self.__steps_number
+
+    @property
+    def steps_number(self) -> float:
 
-        self.__length = len(scan_path)
+        return self.__steps_number
 
     @property
-    def length(self) -> float:
+    def step_fixation_durations_average(self) -> float:
 
-        return self.__length
-\ No newline at end of file
+        return self.__step_fixation_durations_average
+\ No newline at end of file