how to update column in data frame based on condition












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How to update column IsLCap column in dataframe based on Lvalue column whether it is capitilized or not.



df.loc[df.Lvalue.istitle(), 'IsLCap'] = 1 # need to be corrected



getting an error -AttributeError: 'Series' object has no attribute 'istitle'










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    0












    $begingroup$


    How to update column IsLCap column in dataframe based on Lvalue column whether it is capitilized or not.



    df.loc[df.Lvalue.istitle(), 'IsLCap'] = 1 # need to be corrected



    getting an error -AttributeError: 'Series' object has no attribute 'istitle'










    share|improve this question







    New contributor




    SUHASINI KL is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      0












      0








      0





      $begingroup$


      How to update column IsLCap column in dataframe based on Lvalue column whether it is capitilized or not.



      df.loc[df.Lvalue.istitle(), 'IsLCap'] = 1 # need to be corrected



      getting an error -AttributeError: 'Series' object has no attribute 'istitle'










      share|improve this question







      New contributor




      SUHASINI KL is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      How to update column IsLCap column in dataframe based on Lvalue column whether it is capitilized or not.



      df.loc[df.Lvalue.istitle(), 'IsLCap'] = 1 # need to be corrected



      getting an error -AttributeError: 'Series' object has no attribute 'istitle'







      python dataframe






      share|improve this question







      New contributor




      SUHASINI KL is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      SUHASINI KL is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






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      asked 4 hours ago









      SUHASINI KLSUHASINI KL

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          1 Answer
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          $begingroup$

          You access string functions with .str. This should work:



          df.loc[df.Lvalue.str.istitle(), 'IsLCap'] = 1



          Update
          To check the length of the strings in the column you can use the string method .str.len:



          df.loc[df.Lvalue.str.len() < 3, 'less_than_three'] = 1



          Pandas Series string methods






          share|improve this answer










          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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          • $begingroup$
            i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
            $endgroup$
            – SUHASINI KL
            3 hours ago












          • $begingroup$
            I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
            $endgroup$
            – mbass
            3 hours ago













          Your Answer





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          1 Answer
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          1 Answer
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          active

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          1












          $begingroup$

          You access string functions with .str. This should work:



          df.loc[df.Lvalue.str.istitle(), 'IsLCap'] = 1



          Update
          To check the length of the strings in the column you can use the string method .str.len:



          df.loc[df.Lvalue.str.len() < 3, 'less_than_three'] = 1



          Pandas Series string methods






          share|improve this answer










          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$













          • $begingroup$
            i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
            $endgroup$
            – SUHASINI KL
            3 hours ago












          • $begingroup$
            I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
            $endgroup$
            – mbass
            3 hours ago


















          1












          $begingroup$

          You access string functions with .str. This should work:



          df.loc[df.Lvalue.str.istitle(), 'IsLCap'] = 1



          Update
          To check the length of the strings in the column you can use the string method .str.len:



          df.loc[df.Lvalue.str.len() < 3, 'less_than_three'] = 1



          Pandas Series string methods






          share|improve this answer










          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$













          • $begingroup$
            i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
            $endgroup$
            – SUHASINI KL
            3 hours ago












          • $begingroup$
            I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
            $endgroup$
            – mbass
            3 hours ago
















          1












          1








          1





          $begingroup$

          You access string functions with .str. This should work:



          df.loc[df.Lvalue.str.istitle(), 'IsLCap'] = 1



          Update
          To check the length of the strings in the column you can use the string method .str.len:



          df.loc[df.Lvalue.str.len() < 3, 'less_than_three'] = 1



          Pandas Series string methods






          share|improve this answer










          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$



          You access string functions with .str. This should work:



          df.loc[df.Lvalue.str.istitle(), 'IsLCap'] = 1



          Update
          To check the length of the strings in the column you can use the string method .str.len:



          df.loc[df.Lvalue.str.len() < 3, 'less_than_three'] = 1



          Pandas Series string methods







          share|improve this answer










          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|improve this answer



          share|improve this answer








          edited 3 hours ago





















          New contributor




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          answered 4 hours ago









          mbassmbass

          262




          262




          New contributor




          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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          New contributor





          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          mbass is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.












          • $begingroup$
            i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
            $endgroup$
            – SUHASINI KL
            3 hours ago












          • $begingroup$
            I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
            $endgroup$
            – mbass
            3 hours ago




















          • $begingroup$
            i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
            $endgroup$
            – SUHASINI KL
            3 hours ago












          • $begingroup$
            I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
            $endgroup$
            – mbass
            3 hours ago


















          $begingroup$
          i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
          $endgroup$
          – SUHASINI KL
          3 hours ago






          $begingroup$
          i need to check string length also, df.loc[len(df.Lvalue)<3, 'LlessThan3'] = 1 ## need to correct this. How can i do this
          $endgroup$
          – SUHASINI KL
          3 hours ago














          $begingroup$
          I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
          $endgroup$
          – mbass
          3 hours ago






          $begingroup$
          I have updated my answer with a solution. If this works for you, you should accept/upvote the answer. @SUHASINIKL
          $endgroup$
          – mbass
          3 hours ago












          SUHASINI KL is a new contributor. Be nice, and check out our Code of Conduct.










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