Random Number Seed for Picking Random Subset Use this option to specify a value used to determine the random subset of data to be plotted. You must enter an integer greater than or equal to one ( 1 ). This option is used only when the value specified in the Plot Rate field is less than 1.0 . To Change the Random Number Seed: Highlight the existing random number seed and type the desired value in the text field. If you change your mind and would like to reset the field, click Clear .