StepFastDescription
aggregateGroup and aggregate a dataset using any of a number of predefined functions
aggregate_list_itemsGroup a dataset by elements in a column of lists and aggregate remaining columns using one or more predefined functions
aggregate_neighboursFor each node in a network, group and aggregate over its neighbours
aggregate_tweets_by_authorGroup a dataset of tweets by author and calculate relevant author statistics
group_byGroup data by specified columns and apply aggregation functions to each group
meltReshape a dataset by transforming columns into rows