Hi,
   
  I have a dataset which has both numeric and character values with dupllicates. For example:
   
  155   A
138   A
138   B
126   C
126   D
123   A
103   A
103   B
143   D
111   C
111   D
156   C
   
  How can I count the number of unqiue entries without counting duplicate entries. Also can I extract the list in a object. What I mean is
   Col1 unique count = 8  Unique Elements are : 103,111,123,126,138,143,155,156
   Col2 unique count = 4  Unique Elements are :  A,B,C,D.
   
  Any pointers would be of great help.
   
  TIA
  Sachin
   

		
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