Subtracting FloatVector from FloatVector using rpy2












0














I am using grf package in R in my Python code with the help of rpy2. However, I am a little confused with a structure that rpy2 returns.



Here I am trying to find the difference of two vectors simply subtracting. If it was just a vector in R, I would simply subtract using -.



But here is my problem:



    pred_w1.rx2("predictions")
Out[92]:
R object with classes: ('numeric',) mapped to:
<FloatVector - Python:0x1c17447e08 / R:0x7fe214bf7c00>
[-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327, -0.267804,
0.255273, 0.287592]


pred_w1.rx2("predictions")
Out[93]:
R object with classes: ('numeric',) mapped to:
<FloatVector - Python:0x1c18f02808 / R:0x7fe214bf7c00>
[-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327,
-0.267804, 0.255273, 0.287592]


Now when I try to subtract like this:



    pred_w1.rx2("predictions") - pred_w0.rx2("predictions")`


I get this error:



    File "<ipython-input-95-161c70b4f42f>", line 1, in <module>
pred_w1.rx2("predictions") - pred_w0.rx2("predictions")
TypeError: unsupported operand type(s) for -: 'FloatVector' and 'FloatVector'


I think this should be fairly easy. I am just not so familiar with rpy2.










share|improve this question



























    0














    I am using grf package in R in my Python code with the help of rpy2. However, I am a little confused with a structure that rpy2 returns.



    Here I am trying to find the difference of two vectors simply subtracting. If it was just a vector in R, I would simply subtract using -.



    But here is my problem:



        pred_w1.rx2("predictions")
    Out[92]:
    R object with classes: ('numeric',) mapped to:
    <FloatVector - Python:0x1c17447e08 / R:0x7fe214bf7c00>
    [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327, -0.267804,
    0.255273, 0.287592]


    pred_w1.rx2("predictions")
    Out[93]:
    R object with classes: ('numeric',) mapped to:
    <FloatVector - Python:0x1c18f02808 / R:0x7fe214bf7c00>
    [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327,
    -0.267804, 0.255273, 0.287592]


    Now when I try to subtract like this:



        pred_w1.rx2("predictions") - pred_w0.rx2("predictions")`


    I get this error:



        File "<ipython-input-95-161c70b4f42f>", line 1, in <module>
    pred_w1.rx2("predictions") - pred_w0.rx2("predictions")
    TypeError: unsupported operand type(s) for -: 'FloatVector' and 'FloatVector'


    I think this should be fairly easy. I am just not so familiar with rpy2.










    share|improve this question

























      0












      0








      0







      I am using grf package in R in my Python code with the help of rpy2. However, I am a little confused with a structure that rpy2 returns.



      Here I am trying to find the difference of two vectors simply subtracting. If it was just a vector in R, I would simply subtract using -.



      But here is my problem:



          pred_w1.rx2("predictions")
      Out[92]:
      R object with classes: ('numeric',) mapped to:
      <FloatVector - Python:0x1c17447e08 / R:0x7fe214bf7c00>
      [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327, -0.267804,
      0.255273, 0.287592]


      pred_w1.rx2("predictions")
      Out[93]:
      R object with classes: ('numeric',) mapped to:
      <FloatVector - Python:0x1c18f02808 / R:0x7fe214bf7c00>
      [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327,
      -0.267804, 0.255273, 0.287592]


      Now when I try to subtract like this:



          pred_w1.rx2("predictions") - pred_w0.rx2("predictions")`


      I get this error:



          File "<ipython-input-95-161c70b4f42f>", line 1, in <module>
      pred_w1.rx2("predictions") - pred_w0.rx2("predictions")
      TypeError: unsupported operand type(s) for -: 'FloatVector' and 'FloatVector'


      I think this should be fairly easy. I am just not so familiar with rpy2.










      share|improve this question













      I am using grf package in R in my Python code with the help of rpy2. However, I am a little confused with a structure that rpy2 returns.



      Here I am trying to find the difference of two vectors simply subtracting. If it was just a vector in R, I would simply subtract using -.



      But here is my problem:



          pred_w1.rx2("predictions")
      Out[92]:
      R object with classes: ('numeric',) mapped to:
      <FloatVector - Python:0x1c17447e08 / R:0x7fe214bf7c00>
      [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327, -0.267804,
      0.255273, 0.287592]


      pred_w1.rx2("predictions")
      Out[93]:
      R object with classes: ('numeric',) mapped to:
      <FloatVector - Python:0x1c18f02808 / R:0x7fe214bf7c00>
      [-0.548409, -0.224735, 0.948285, 0.269825, ..., 0.259327,
      -0.267804, 0.255273, 0.287592]


      Now when I try to subtract like this:



          pred_w1.rx2("predictions") - pred_w0.rx2("predictions")`


      I get this error:



          File "<ipython-input-95-161c70b4f42f>", line 1, in <module>
      pred_w1.rx2("predictions") - pred_w0.rx2("predictions")
      TypeError: unsupported operand type(s) for -: 'FloatVector' and 'FloatVector'


      I think this should be fairly easy. I am just not so familiar with rpy2.







      rpy2






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      asked Nov 22 at 22:38









      Buyan

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          Use the delegator ro (as in r operator):



          pred_w1.rx2("predictions").ro - pred_w0.rx2("predictions")



          (more in the documentation: https://rpy2.github.io/doc/v2.9.x/html/vector.html#operators )






          share|improve this answer





















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            1 Answer
            1






            active

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            active

            oldest

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            active

            oldest

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            0














            Use the delegator ro (as in r operator):



            pred_w1.rx2("predictions").ro - pred_w0.rx2("predictions")



            (more in the documentation: https://rpy2.github.io/doc/v2.9.x/html/vector.html#operators )






            share|improve this answer


























              0














              Use the delegator ro (as in r operator):



              pred_w1.rx2("predictions").ro - pred_w0.rx2("predictions")



              (more in the documentation: https://rpy2.github.io/doc/v2.9.x/html/vector.html#operators )






              share|improve this answer
























                0












                0








                0






                Use the delegator ro (as in r operator):



                pred_w1.rx2("predictions").ro - pred_w0.rx2("predictions")



                (more in the documentation: https://rpy2.github.io/doc/v2.9.x/html/vector.html#operators )






                share|improve this answer












                Use the delegator ro (as in r operator):



                pred_w1.rx2("predictions").ro - pred_w0.rx2("predictions")



                (more in the documentation: https://rpy2.github.io/doc/v2.9.x/html/vector.html#operators )







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 23 at 3:32









                lgautier

                8,7431836




                8,7431836






























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