Scipy.optimize.mininize get number of function evaluations












-1















I would like to store the number of function evaluations (Fevals) made by a Scipy optimization algorithm in an external variable to count the final number of evaluations made by the entire program (Scipy is repeated many times).










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    -1















    I would like to store the number of function evaluations (Fevals) made by a Scipy optimization algorithm in an external variable to count the final number of evaluations made by the entire program (Scipy is repeated many times).










    share|improve this question



























      -1












      -1








      -1








      I would like to store the number of function evaluations (Fevals) made by a Scipy optimization algorithm in an external variable to count the final number of evaluations made by the entire program (Scipy is repeated many times).










      share|improve this question
















      I would like to store the number of function evaluations (Fevals) made by a Scipy optimization algorithm in an external variable to count the final number of evaluations made by the entire program (Scipy is repeated many times).







      python optimization scipy






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      edited Nov 27 '18 at 21:44









      Mad Physicist

      38k1674108




      38k1674108










      asked Nov 27 '18 at 20:54









      DCCCCCDCCCCC

      31




      31
























          2 Answers
          2






          active

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          votes


















          1














          You can extract it out from the optimization object and add the value at every outer Scipy call. In order to see how to get the number of function evaluations please see this scipy documentation. You can refer to the examples on the same page to inspect an example.



          In case this does not help, you may wrap your cost function and try something like this:



          class F(object):

          def __init__(self, fn):

          self.n_calls = 0
          self.fn = fn

          def __call__(self, x):

          self.n_calls += 1
          return self.fn(x)

          return F(fn)





          share|improve this answer

































            0














            Use the callback argument to pass a function that will increment a global integer.






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              2 Answers
              2






              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              1














              You can extract it out from the optimization object and add the value at every outer Scipy call. In order to see how to get the number of function evaluations please see this scipy documentation. You can refer to the examples on the same page to inspect an example.



              In case this does not help, you may wrap your cost function and try something like this:



              class F(object):

              def __init__(self, fn):

              self.n_calls = 0
              self.fn = fn

              def __call__(self, x):

              self.n_calls += 1
              return self.fn(x)

              return F(fn)





              share|improve this answer






























                1














                You can extract it out from the optimization object and add the value at every outer Scipy call. In order to see how to get the number of function evaluations please see this scipy documentation. You can refer to the examples on the same page to inspect an example.



                In case this does not help, you may wrap your cost function and try something like this:



                class F(object):

                def __init__(self, fn):

                self.n_calls = 0
                self.fn = fn

                def __call__(self, x):

                self.n_calls += 1
                return self.fn(x)

                return F(fn)





                share|improve this answer




























                  1












                  1








                  1







                  You can extract it out from the optimization object and add the value at every outer Scipy call. In order to see how to get the number of function evaluations please see this scipy documentation. You can refer to the examples on the same page to inspect an example.



                  In case this does not help, you may wrap your cost function and try something like this:



                  class F(object):

                  def __init__(self, fn):

                  self.n_calls = 0
                  self.fn = fn

                  def __call__(self, x):

                  self.n_calls += 1
                  return self.fn(x)

                  return F(fn)





                  share|improve this answer















                  You can extract it out from the optimization object and add the value at every outer Scipy call. In order to see how to get the number of function evaluations please see this scipy documentation. You can refer to the examples on the same page to inspect an example.



                  In case this does not help, you may wrap your cost function and try something like this:



                  class F(object):

                  def __init__(self, fn):

                  self.n_calls = 0
                  self.fn = fn

                  def __call__(self, x):

                  self.n_calls += 1
                  return self.fn(x)

                  return F(fn)






                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Nov 27 '18 at 21:30

























                  answered Nov 27 '18 at 21:19









                  T-800T-800

                  817918




                  817918

























                      0














                      Use the callback argument to pass a function that will increment a global integer.






                      share|improve this answer




























                        0














                        Use the callback argument to pass a function that will increment a global integer.






                        share|improve this answer


























                          0












                          0








                          0







                          Use the callback argument to pass a function that will increment a global integer.






                          share|improve this answer













                          Use the callback argument to pass a function that will increment a global integer.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Nov 27 '18 at 21:18









                          SilmathoronSilmathoron

                          1,0611921




                          1,0611921






























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