Panda lambda TypeError object float no len()











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Python Pandas lambda for update column with
lambda x: np.nan if x == '0/0' else df['RatioFraction']



Filter on one column then use lambda to change conditional on np.nan for no vote (0/0).



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TypeError: object of type 'float' has no len()


Code:



df['RatioFraction'] = df_ff_reviews['VoteRatio'].apply(lambda x: np.nan if x == '0/0' else df['RatioFraction'])









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  • How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
    – user1857373
    Nov 22 at 5:28















up vote
0
down vote

favorite












Python Pandas lambda for update column with
lambda x: np.nan if x == '0/0' else df['RatioFraction']



Filter on one column then use lambda to change conditional on np.nan for no vote (0/0).



Received



TypeError: object of type 'float' has no len()


Code:



df['RatioFraction'] = df_ff_reviews['VoteRatio'].apply(lambda x: np.nan if x == '0/0' else df['RatioFraction'])









share|improve this question
























  • How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
    – user1857373
    Nov 22 at 5:28













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Python Pandas lambda for update column with
lambda x: np.nan if x == '0/0' else df['RatioFraction']



Filter on one column then use lambda to change conditional on np.nan for no vote (0/0).



Received



TypeError: object of type 'float' has no len()


Code:



df['RatioFraction'] = df_ff_reviews['VoteRatio'].apply(lambda x: np.nan if x == '0/0' else df['RatioFraction'])









share|improve this question















Python Pandas lambda for update column with
lambda x: np.nan if x == '0/0' else df['RatioFraction']



Filter on one column then use lambda to change conditional on np.nan for no vote (0/0).



Received



TypeError: object of type 'float' has no len()


Code:



df['RatioFraction'] = df_ff_reviews['VoteRatio'].apply(lambda x: np.nan if x == '0/0' else df['RatioFraction'])






python-3.x pandas lambda






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edited Nov 22 at 8:47









Mohit Motwani

8731320




8731320










asked Nov 22 at 5:25









user1857373

316




316












  • How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
    – user1857373
    Nov 22 at 5:28


















  • How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
    – user1857373
    Nov 22 at 5:28
















How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
– user1857373
Nov 22 at 5:28




How do I code the apply function, e.g., apply(str.len) inside this lambda function to remove the object type no len()?
– user1857373
Nov 22 at 5:28












2 Answers
2






active

oldest

votes

















up vote
0
down vote



accepted










You can try np.where:



df['RatioFraction'] = np.where(df['VoteRatio'] == '0/0', np.nan, df['VoteRation'])





share|improve this answer




























    up vote
    1
    down vote













    Try this:



    df['RatioFraction'] = df_ff_reviews['VoteRatio']

    df['RatioFraction'].loc[df['RatioFraction'] == '0/0'] = np.nan





    share|improve this answer





















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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      0
      down vote



      accepted










      You can try np.where:



      df['RatioFraction'] = np.where(df['VoteRatio'] == '0/0', np.nan, df['VoteRation'])





      share|improve this answer

























        up vote
        0
        down vote



        accepted










        You can try np.where:



        df['RatioFraction'] = np.where(df['VoteRatio'] == '0/0', np.nan, df['VoteRation'])





        share|improve this answer























          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          You can try np.where:



          df['RatioFraction'] = np.where(df['VoteRatio'] == '0/0', np.nan, df['VoteRation'])





          share|improve this answer












          You can try np.where:



          df['RatioFraction'] = np.where(df['VoteRatio'] == '0/0', np.nan, df['VoteRation'])






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 22 at 6:20









          Mohit Motwani

          8731320




          8731320
























              up vote
              1
              down vote













              Try this:



              df['RatioFraction'] = df_ff_reviews['VoteRatio']

              df['RatioFraction'].loc[df['RatioFraction'] == '0/0'] = np.nan





              share|improve this answer

























                up vote
                1
                down vote













                Try this:



                df['RatioFraction'] = df_ff_reviews['VoteRatio']

                df['RatioFraction'].loc[df['RatioFraction'] == '0/0'] = np.nan





                share|improve this answer























                  up vote
                  1
                  down vote










                  up vote
                  1
                  down vote









                  Try this:



                  df['RatioFraction'] = df_ff_reviews['VoteRatio']

                  df['RatioFraction'].loc[df['RatioFraction'] == '0/0'] = np.nan





                  share|improve this answer












                  Try this:



                  df['RatioFraction'] = df_ff_reviews['VoteRatio']

                  df['RatioFraction'].loc[df['RatioFraction'] == '0/0'] = np.nan






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 22 at 5:32









                  AResem

                  1114




                  1114






























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