query: R create ID within a group
positive_passages.docid: 13177
positive_passages.text: Numbering rows within groups in a data frame
negative_passages.docid: 59898
negative_passages.text: Elementary manipulation with elements of group
negative_passages.docid: 132574
negative_passages.text: Get the means of sub groups of means in R
negative_passages.docid: 143217
negative_passages.text: Auto-increment ids with multiple inserts in mysql/mariadb
negative_passages.docid: 7274
negative_passages.text: Calculate group mean (or other summary stats) and assign to original data
negative_passages.docid: 16277
negative_passages.text: How to connect nodes to node group inputs and outputs in python?
negative_passages.docid: 140053
negative_passages.text: How to duplicate a group to a new document having this document the exact same size as the group?
negative_passages.docid: 141142
negative_passages.text: Create a variable name with "paste" in R?
negative_passages.docid: 77600
negative_passages.text: How to create a consecutive group number
negative_passages.docid: 106954
negative_passages.text: Generate random numbers following a distribution within an interval
negative_passages.docid: 68337
negative_passages.text: Is there a wildcard selector for identifiers (id)?
negative_passages.docid: 145311
negative_passages.text: Generate an increment ID that is unique for a given value of a foreign key
negative_passages.docid: 24411
negative_passages.text: Aggregate / summarize multiple variables per group (e.g. sum, mean)
negative_passages.docid: 131373
negative_passages.text: converting string IDs into numbers in a multilevel analysis using R
negative_passages.docid: 25066
negative_passages.text: Adding a new column to each element in a list of tables or data frames
negative_passages.docid: 5136
negative_passages.text: How to sum a variable by group
negative_passages.docid: 45771
negative_passages.text: Add (insert) a column between two columns in a data.frame