See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package.

Option 1 - data table: The best solution is to simply provide this as an accessible HTML data table. This will give the student independent access to the data without changing the visual format.

So instead, they may use a whole number, denoted by x, to specify how close the hash table is to 100 percent full. If x is 100, then the table is 99 percent full. If x is 1,000, the table is 99.9 ...

Figure 2.33: Opening the Combined Table. By default, data tables are opened in Browse mode. Select Edit Mode Edit to change the mode from Browse to Edit. Modify the Data In the data table you can ...

For some data.table users, “dot-SD” is a bit of a mystery. But data.table creator Matt Dowle told me that it’s actually quite simple: Just think of it as a symbol representing “each group ...