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Top Answers
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Mutate a transposed column into new columns row-wise by group
4 votes
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Counting observations and considering condition
3 votes
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remove first occurrence of duplicate column names data.table
3 votes
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What is the quickest way to create new column of all unique last names for a given first name in Base R
3 votes
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How can I add only the first elements of an array in python?
3 votes
Top Questions
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How to mutate a new col in dataframe using a specific function and conditions? Tidyverse/R
2 votes1 answers
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Why lubridate fails to parse some dates based on different Olson names for same time zone?
2 votes0 answers
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How to avoid overlaying annotations?
1 votes1 answers