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With a program on R used to identified duplicates rows by hihgligting the eventual typing mistake, I have that kind of results :

  • col1/col2/difference
  • jeandupont/jeandupond/1
  • bernarddurand/bernarddurant/1
  • bernarddurant/bernarddurand/1
  • jeandupond/jeandupont/1

My rows are present two times in each way. I don't know how I can do to have a result like this :

  • col1/col2/difference
  • jeandupont/jeandupond/1
  • bernarddurand/bernarddurant/1

With that, I divide by 2 my number of line to pay attention.

Thank you for your help

MrFlick
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