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Hi, I have a matrix of duplicate rows. How to output a list the unique rows with their count? I have used "unique" to have the unique rows, but can't produce the occurences of each unique row. Thanks Louis --------------------------------- [[alternative HTML version deleted]]

...s R1, R3 U2 satisfies R1, R2, R3 So this is a comparison of dataframes problem, with a subset dimension. There are 2 dataframe R and U. column names are same. There are certain columns belonging to each row in dataframe 1, denoted as 1s, while there are certain cols to each U denoted as 1s in each URow in dataframe2. I have to find relationships between Rs and Us. So i start with each U row in U dataframe (lets say U1 row) and try to find all the rows in R dataframe, which are subset of U1 row. I cant find a way to compare rows to see if one is subset of another....what can I try, any pointers/...

...-- David. > So this is a comparison of dataframes problem, with a subset dimension. > There are 2 dataframe R and U. column names are same. There are certain > columns belonging to each row in dataframe 1, denoted as 1s, while there > are certain cols to each U denoted as 1s in each URow in dataframe2. > > I have to find relationships between Rs and Us. So i start with each U row > in U dataframe (lets say U1 row) and try to find all the rows in R > dataframe, which are subset of U1 row. > > I cant find a way to compare rows to see if one is subset of > anoth...

...s R1, R3 U2 satisfies R1, R2, R3 So this is a comparison of dataframes problem, with a subset dimension. There are 2 dataframe R and U. column names are same. There are certain columns belonging to each row in dataframe 1, denoted as 1s, while there are certain cols to each U denoted as 1s in each URow in dataframe2. I have to find relationships between Rs and Us. So i start with each U row in U dataframe (lets say U1 row) and try to find all the rows in R dataframe, which are subset of U1 row. I cant find a way to compare rows to see if one is subset of another....what can I try, any pointers/...

...s R1, R3 U2 satisfies R1, R2, R3 So this is a comparison of dataframes problem, with a subset dimension. There are 2 dataframe R and U. column names are same. There are certain columns belonging to each row in dataframe 1, denoted as 1s, while there are certain cols to each U denoted as 1s in each URow in dataframe2. I have to find relationships between Rs and Us. So i start with each U row in U dataframe (lets say U1 row) and try to find all the rows in R dataframe, which are subset of U1 row. I cant find a way to compare rows to see if one is subset of another....what can I try, any pointers/...