def __init__(self, functions):
"""Functions must currently be a tuple or list with two projection
operators.
"""
self.functions = functions
# from algorithms import ProjectionADMM
# self.proj_op = ProjectionADMM()
from parsimony.algorithms.explicit import DykstrasProjectionAlgorithm
self.proj_op = DykstrasProjectionAlgorithm()
class CombinedProjectionOperator(Function, ProjectionOperator):
def __init__(self, functions):
"""Functions must currently be a tuple or list with two projection
operators.
"""
self.functions = functions
# from algorithms import ProjectionADMM
# self.proj_op = ProjectionADMM()
from parsimony.algorithms.explicit import DykstrasProjectionAlgorithm
self.proj_op = DykstrasProjectionAlgorithm()
def f(self, x):
val = 0
for func in self.functions:
val += func.f(x)
return val
def proj(self, x):
"""The projection operator corresponding to the function.
From the interface "ProjectionOperator".
"""
proj = self.proj_op.run(self.functions, x)
return proj
class CombinedProjectionOperator(Function, ProjectionOperator):
def __init__(self, functions):
"""Functions must currently be a tuple or list with two projection
operators.
"""
self.functions = functions
# from algorithms import ProjectionADMM
# self.proj_op = ProjectionADMM()
from parsimony.algorithms.explicit import DykstrasProjectionAlgorithm
self.proj_op = DykstrasProjectionAlgorithm()
def f(self, x):
val = 0
for func in self.functions:
val += func.f(x)
return val
def proj(self, x):
"""The projection operator corresponding to the function.
From the interface "ProjectionOperator".
"""
proj = self.proj_op.run(self.functions, x)
return proj
def __init__(self, functions):
"""Functions must currently be a tuple or list with two projection
operators.
"""
self.functions = functions
# from algorithms import ProjectionADMM
# self.proj_op = ProjectionADMM()
from parsimony.algorithms.explicit import DykstrasProjectionAlgorithm
self.proj_op = DykstrasProjectionAlgorithm()
