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It pairs nicely with tidyr which enables you to swiftly convert between different data formats for plotting and analysis. dplyr is a package for helping with tabular data manipulation. Reshape a data frame from long to wide format and back with the spread and gather commands from the tidyr package.īracket subsetting is handy, but it can be cumbersome and difficult to read, especially for complicated operations.Describe the concept of a wide and a long table format and for which purpose those formats are useful.Use summarize, group_by, and count to split a data frame into groups of observations, apply summary statistics for each group, and then combine the results.Use the split-apply-combine concept for data analysis.Add new columns to a data frame that are functions of existing columns with mutate.Link the output of one dplyr function to the input of another function with the ‘pipe’ operator %>%.Extract certain rows in a data frame according to logical (boolean) conditions with the dplyr function filter.Select certain columns in a data frame with the dplyr function select.Describe the purpose of the dplyr and tidyr packages.

Click the purple check button to save your Merge Variableĭelete a Merge Variable to remove it from all Library Entries, Project Entries and Reviews, and replace it with the Variable Value at the time of deletion.Manipulating and analyzing data with dplyr.Comment/instructions: Any context that will help your Users to ensure this variable is used as intended.Value: The value that currently defines your Merge Variable (this is the value that will display in your saved Library Entries when the Merge Variable is used).Variable Name: The name or topic of your Merge Variable (this is how it will appear in the Library Entry create and edit flows).Locate the Merge Variable you would like to update, then click the Edit Variable (pencil) icon.Navigate to the Merge Variables page by clicking Library in the main menu, then selecting Merge Variables.Updates to the Variable Value in a Merge Variable will be immediately reflected in any Library Entry in which the Merge Variable is used. Permissions Required: Library, Level 3 permissions required to modify or delete Merge Variables.