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Close nipreps#41

eddymotion/model.py

@@ -94,15 +94,15 @@ def predict(self, gradient, **kwargs):
 class AverageDWModel:
     """A trivial model that returns an average map."""
 
-    __slots__ = ("_data",)
+    __slots__ = ("_data", "_gtab")
 
     def __init__(self, gtab, **kwargs):
         """Implement object initialization."""
-        return  # do nothing at initialization time
+        self._gtab = gtab
 
     def fit(self, data, **kwargs):
         """Calculate the average."""
-        self._data = data.mean(-1)
+        self._data = data[..., self._gtab[..., 3] > 50].mean(-1)
 
     def predict(self, gradient, **kwargs):
         """Return the average map."""