def sum(self, axis=None):
"""Sum the matrix over the given axis. If the axis is None, sum
over both rows and columns, returning a scalar.
"""
# The spmatrix base class already does axis=0 and axis=1 efficiently
# so we only do the case axis=None here
if axis is None:
return self.data.sum()
else:
return spmatrix.sum(self, axis)
raise ValueError("axis out of bounds")
def sum(self, axis=None):
"""Sum the matrix over the given axis. If the axis is None, sum
over both rows and columns, returning a scalar.
"""
# The spmatrix base class already does axis=0 and axis=1 efficiently
# so we only do the case axis=None here
if axis is None:
return self.data.sum()
else:
return spmatrix.sum(self,axis)
raise ValueError("axis out of bounds")