Minor cleanup changes

gammapy · Nov 4, 2019 · ecbd205 · ecbd205
1 parent 8ec4399
commit ecbd205
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Showing 2 changed files with 2 additions and 8 deletions.
diff --git a/gammapy/cube/fit.py b/gammapy/cube/fit.py
@@ -868,11 +868,8 @@ def to_image(self, spectrum=None, keepdims=True):
         dataset : `MapDataset`
             Map dataset containing images.
         """
-        counts = self.counts.copy()
-        background = self.background_model.evaluate().copy()
-
-        counts *= self.mask_safe
-        background *= self.mask_safe
+        counts = self.counts * self.mask_safe
+        background = self.background_model.evaluate() * self.mask_safe
 
         counts = counts.sum_over_axes(keepdims=keepdims)
         exposure = _map_spectrum_weight(self.exposure, spectrum)

diff --git a/gammapy/modeling/models/cube.py b/gammapy/modeling/models/cube.py
@@ -41,9 +41,6 @@ class SkyModels:
     skymodels : list of `~gammapy.modeling.models.SkyModel`
         Sky models
     """
-
-    frame = None
-
     def __init__(self, skymodels):
         existing_names = []