Carl Eberhard avatar Carl Eberhard committed 253c49c

Fix median aggregate statistic f in ColumnDataProvider

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lib/galaxy/visualization/data_providers/basic.py

                 meta[ 'mean' ] = float( meta[ 'sum' ] ) / count
                 
                 sorted_data = sorted( response[ 'data' ][ index ] )
-                # even data count -
                 middle_index = ( count / 2 ) - 1
                 if count % 2 == 0:
-                    meta[ 'median' ] = sum( sorted_data[ middle_index : ( middle_index + 1 ) ] ) / 2.0
+                    meta[ 'median' ] = ( ( sorted_data[ middle_index ] + sorted_data[( middle_index + 1 )] ) / 2.0 )
                     
                 else:
                     meta[ 'median' ] = sorted_data[ middle_index ]
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