Scatterplot matrices. For a set of data variables (dimensions) X1, X2, ... , Xk, the scatter plot matrix shows all the pairwise scatter plots of the variables on a single view with multiple scatterplots in a matrix format. For k variables, the scatterplot matrix will contain k rows and k columns.
Using a computer mouse is one of the first steps to properly operating a computer. The mouse allows you to move the cursor and click programs. These steps will show you how to use a PC and MAC computer mouse, whether it is plugged into the computer, wireless, or connects via bluetooth.
While older mice use a small ball on the bottom to control the cursor, newer ones use a laser. Some computer mice instead have a large ball on top of the mouse so that instead of moving the mouse across a surface to interact with the computer, the user keeps the mouse stationary and instead moves the ball.