Boolean operation for 2 lists












0















I would like to get a result of OR between in two list like



a = [0,0,1,1]
b = [0,1,0,1]
output = [0,1,1,1]


I have tried output = a or b but the answer isn't correct










share|improve this question





























    0















    I would like to get a result of OR between in two list like



    a = [0,0,1,1]
    b = [0,1,0,1]
    output = [0,1,1,1]


    I have tried output = a or b but the answer isn't correct










    share|improve this question



























      0












      0








      0








      I would like to get a result of OR between in two list like



      a = [0,0,1,1]
      b = [0,1,0,1]
      output = [0,1,1,1]


      I have tried output = a or b but the answer isn't correct










      share|improve this question
















      I would like to get a result of OR between in two list like



      a = [0,0,1,1]
      b = [0,1,0,1]
      output = [0,1,1,1]


      I have tried output = a or b but the answer isn't correct







      python python-2.7






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 15 '18 at 20:47









      blhsing

      39.2k41742




      39.2k41742










      asked Nov 15 '18 at 20:37









      Thanat TothongThanat Tothong

      1




      1
























          4 Answers
          4






          active

          oldest

          votes


















          1














          You can map a and b to operator.or_:



          from operator import or_
          output = map(or_, a, b)


          output becomes:



          [0, 1, 1, 1]





          share|improve this answer































            0














            output = map(lambda x, y: bool(x or y), a, b)


            Result:



            output == [False, True, True, True]





            share|improve this answer































              0














              note that or or the binary operator | could be used here:



              a = [0,0,1,1]
              b = [0,1,0,1]

              a_or_b = [aa | bb for aa, bb in zip(a, b)]
              # this also works:
              # a_or_b = [aa or bb for aa, bb in zip(a, b)]
              print(a_or_b) # [0, 1, 1, 1]





              share|improve this answer































                0














                You can use the 'numpy' library and take the maximum over the corresponding axis:



                import numpy as np

                a = np.array([[0,0,1,1], [0,1,0,1]])
                np.amax(a, axis=0)





                share|improve this answer























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                  4 Answers
                  4






                  active

                  oldest

                  votes








                  4 Answers
                  4






                  active

                  oldest

                  votes









                  active

                  oldest

                  votes






                  active

                  oldest

                  votes









                  1














                  You can map a and b to operator.or_:



                  from operator import or_
                  output = map(or_, a, b)


                  output becomes:



                  [0, 1, 1, 1]





                  share|improve this answer




























                    1














                    You can map a and b to operator.or_:



                    from operator import or_
                    output = map(or_, a, b)


                    output becomes:



                    [0, 1, 1, 1]





                    share|improve this answer


























                      1












                      1








                      1







                      You can map a and b to operator.or_:



                      from operator import or_
                      output = map(or_, a, b)


                      output becomes:



                      [0, 1, 1, 1]





                      share|improve this answer













                      You can map a and b to operator.or_:



                      from operator import or_
                      output = map(or_, a, b)


                      output becomes:



                      [0, 1, 1, 1]






                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered Nov 15 '18 at 20:44









                      blhsingblhsing

                      39.2k41742




                      39.2k41742

























                          0














                          output = map(lambda x, y: bool(x or y), a, b)


                          Result:



                          output == [False, True, True, True]





                          share|improve this answer




























                            0














                            output = map(lambda x, y: bool(x or y), a, b)


                            Result:



                            output == [False, True, True, True]





                            share|improve this answer


























                              0












                              0








                              0







                              output = map(lambda x, y: bool(x or y), a, b)


                              Result:



                              output == [False, True, True, True]





                              share|improve this answer













                              output = map(lambda x, y: bool(x or y), a, b)


                              Result:



                              output == [False, True, True, True]






                              share|improve this answer












                              share|improve this answer



                              share|improve this answer










                              answered Nov 15 '18 at 20:43









                              ForceBruForceBru

                              20.5k83354




                              20.5k83354























                                  0














                                  note that or or the binary operator | could be used here:



                                  a = [0,0,1,1]
                                  b = [0,1,0,1]

                                  a_or_b = [aa | bb for aa, bb in zip(a, b)]
                                  # this also works:
                                  # a_or_b = [aa or bb for aa, bb in zip(a, b)]
                                  print(a_or_b) # [0, 1, 1, 1]





                                  share|improve this answer




























                                    0














                                    note that or or the binary operator | could be used here:



                                    a = [0,0,1,1]
                                    b = [0,1,0,1]

                                    a_or_b = [aa | bb for aa, bb in zip(a, b)]
                                    # this also works:
                                    # a_or_b = [aa or bb for aa, bb in zip(a, b)]
                                    print(a_or_b) # [0, 1, 1, 1]





                                    share|improve this answer


























                                      0












                                      0








                                      0







                                      note that or or the binary operator | could be used here:



                                      a = [0,0,1,1]
                                      b = [0,1,0,1]

                                      a_or_b = [aa | bb for aa, bb in zip(a, b)]
                                      # this also works:
                                      # a_or_b = [aa or bb for aa, bb in zip(a, b)]
                                      print(a_or_b) # [0, 1, 1, 1]





                                      share|improve this answer













                                      note that or or the binary operator | could be used here:



                                      a = [0,0,1,1]
                                      b = [0,1,0,1]

                                      a_or_b = [aa | bb for aa, bb in zip(a, b)]
                                      # this also works:
                                      # a_or_b = [aa or bb for aa, bb in zip(a, b)]
                                      print(a_or_b) # [0, 1, 1, 1]






                                      share|improve this answer












                                      share|improve this answer



                                      share|improve this answer










                                      answered Nov 15 '18 at 20:44









                                      hiro protagonisthiro protagonist

                                      19.4k64162




                                      19.4k64162























                                          0














                                          You can use the 'numpy' library and take the maximum over the corresponding axis:



                                          import numpy as np

                                          a = np.array([[0,0,1,1], [0,1,0,1]])
                                          np.amax(a, axis=0)





                                          share|improve this answer




























                                            0














                                            You can use the 'numpy' library and take the maximum over the corresponding axis:



                                            import numpy as np

                                            a = np.array([[0,0,1,1], [0,1,0,1]])
                                            np.amax(a, axis=0)





                                            share|improve this answer


























                                              0












                                              0








                                              0







                                              You can use the 'numpy' library and take the maximum over the corresponding axis:



                                              import numpy as np

                                              a = np.array([[0,0,1,1], [0,1,0,1]])
                                              np.amax(a, axis=0)





                                              share|improve this answer













                                              You can use the 'numpy' library and take the maximum over the corresponding axis:



                                              import numpy as np

                                              a = np.array([[0,0,1,1], [0,1,0,1]])
                                              np.amax(a, axis=0)






                                              share|improve this answer












                                              share|improve this answer



                                              share|improve this answer










                                              answered Nov 15 '18 at 20:44









                                              DavidPMDavidPM

                                              33529




                                              33529






























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