How to add a new column to a data frame in R
One of the first things I struggled with when learning to write R code, was how to add a new column to a data frame in R. For example, we have a data frame, userdata, with the following three colu...
One of the first things I struggled with when learning to write R code, was how to add a new column to a data frame in R. For example, we have a data frame, userdata, with the following three colu...
A data warehouse, distilled to its simplest form, is a database that contains different tables of data that do not change over time. Query and dashboarding tools can be placed on top of the data wa...