Interpreting Correlation

k_vishnu772
k_vishnu772 New Altair Community Member
edited November 5 in Community Q&A

HI All ,

 

I  need small help in interpreting the results of cross correlation.i am using it for classification problem where my target is a binary (yes or no) and most of my input variables are polynomials and i ran the correlation after converting them to numerical variables .lets take one example where i have variable1(V1,V2,V4,V5) and variable2 (T1,T2,T3,T5) and i got the correlation result of V1 and T1 as 0.345 and i don't understand how to interpret this value in relation to my binary target.Could ou please help .

 

Regards,

Vishnu

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Answers

  • Telcontar120
    Telcontar120 New Altair Community Member

    You shouldn't interpret the correlation coefficent at all for nominal variables!  I believe the internal calculation is just the correlation based on ranked category values, but this is rarely meaningful.

  • SGolbert
    SGolbert New Altair Community Member

    I agree with Brian. However, you could use the techniques of Polychorical Correlation or Correspondence Analysis to analize your tables. They are both descriptive statistical processes, which are not included in RM.

     

    Regards,

    Sebastian

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