What is the purpose of the ungroup() function in dplyr?
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How do you select distinct values from a column named category in dplyr using distinct()?
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In dplyr, what does the slice() function do?
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What does the rename_all() function do in dplyr?
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How do you calculate the median of a numeric variable named price for each group in dplyr?
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In dplyr, how do you select columns that match a specific pattern using the select() function?
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What function is used to remove missing values from a dplyr data frame?
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In dplyr, how do you calculate the cumulative sum of a variable named sales within each group?
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How is the case_when() function used in dplyr?
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In dplyr, what does the slice_sample() function do?
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In dplyr, what is the purpose of the distinct() function when used with multiple columns?
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How do you create a new column total_price in dplyr that is the sum of two existing columns price1 and price2?
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What is the purpose of the filter() function in dplyr?
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How do you select columns from a dplyr data frame where the column names start with the letter 'a'?
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In dplyr, how do you calculate the sum and mean of a numeric variable named quantity for each group?
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What is the role of the left_join() function in dplyr?
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In dplyr, how do you filter rows where a specific variable is within a range using filter()?
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How do you count the number of distinct values in a column named category in dplyr?
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In dplyr, how do you filter rows based on multiple conditions using the AND logic?
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What does the desc() function do in dplyr?
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