Top Questions

1. How to create column with values from column of duplicated rows separated by commas in DataFrame in Python Pandas?
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   1 answers
2. How to create new column with nuniqe values per ID in other column and do not count defined value in Python Pandas?
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   1 answers
3. How to check max difference in dates between events and create new column in SAS Enterprise Guide?
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4. How to fill column using values in 2 other columns in PROC SQL / SAS code in SAS Enterprise Guide?
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5. How to count how many time some value appeard with defined ID in PROC SQL in SAS Enterprise Guide?
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