http://feedproxy.google.com/~r/stackoverflow/JqJq/~3/Nos3bgL8F1Q/check-multi-value-duplication-in-pandas Jun 1, 2021 ... In the above Dataframe, I want to examine whether each row is duplicated between [#1, X, Y] , [#2, X_, Z] , [#3, W, Z_] , and [#4, W_, Y_] .