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  • customer function for ROC

     Tundra.L updated 7 months ago 2 Members · 3 Posts
  • Datura

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    November 12, 2020 at 6:43 pm
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    I think that, when you use query() function, probably you can only use columns in the Loan data frame. x is an external object, so Python cannot find it.

    Try to use other functions to subset data.

    • Tundra.L

      Member
      November 12, 2020 at 7:27 pm
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      thank you. I switched to loc() function, now it works. the output is like:

      0 8535
      1 1954
      0 8496
      1 1749
      .......

      • This reply was modified 7 months ago by  Tundra.L.
  • Tundra.L

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    November 12, 2020 at 1:02 pm
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    here is the coding I did for ROC curve:

    threshold=[*range(100,900,100)]
    results=pd.DataFrame()
    for x in threshold:
    print(x)
    roc=Loan.query('CR_Score>x')
    roc=roc.assign(subject=i)
    roc=roc.groupby('Bad').agg({'Client_ID':'count'})
    results=results.append(roc)
    results

    the output is

    100#this is only number, no 200 etc
    .......
    UndefinedVariableError: name 'x' is not defined

    can you please tell me what’s wrong with my code? thanks

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