update call to tomo_n because about to change in tomoscan

nabu/resources/dataset_analyzer.py

@@ -167,7 +167,7 @@ class DatasetAnalyzer(object):
             return
         # Extraneous projections are assumed to be on the end
         projs_indices = sorted(self.projections.keys())
-        used_radios_range = range(projs_indices[0], self.dataset_scanner.tomo_n)
+        used_radios_range = range(projs_indices[0], len(self.projections))
         radios_not_used = []
         for idx in self.projections.keys():
             if idx not in used_radios_range: