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.
A computer mouse translates the movement you make with the mouse over a surface into actions of the cursor on the computer screen. The original mechanical mouse has given way to optical mice and laser mice. What is the difference between them? For the average user, the answer is there isn't much of a difference in how it will work for most purposes. It may come down to cost, as an optical mouse is usually less expensive than a laser mouse.