find duplicate in dataset

[Matteo Ga]

Hi,

I have a dataset with dupliucated cases that could be identified by 2 variable.

 

EX:

Case -- var1 --- var2

1       --  A    ---  1

2       --  A    ---  2

3       --  A    ---  2

4       --  B    ---  1

5       --  B    ---  2

 

I want to find (and then remove) any cases like 3

 

I searched online but I couldn't find any way how to do that.

 

Any help?

 

Thank you