Create a data dictionary report with R and pointblank To document a data set with pointblank in R, you start by creating a pointblank informant object with the create_informant() function.

More details on page 7. Adding a column to an existing data frame One of the easiest tasks to perform in R is adding a new column to a data frame based on one or more other columns.

Creating Data Frames Although it's possible to create a data frame from scratch using Python data structures or NumPy arrays, it's more common in my experience to do so from a file.

To add extra columns to a version data store, you first create an empty data frame with the extra columns you want, and then use that data frame as an argument when creating the store.