Box Plots
Box plots show extreme values, median, lower quartile, and
upper quartile information for groups of data.
In addition, the box plot options let you display symbols for each of the outlier samples in your data group. The definitions of these terms are:
Term 
Definition 
Median 
For an odd number of data points, this is the middle value. For an even number points, it is the mean of the middle values. 
Value[(0.25 x (number of data points) + 0.5, rounded off to nearest whole number] 

Value[0.75 x (number of data points) + 0.5, rounded off to nearest whole number] 
Creating a New Box Plot
To create a 2D boxwhisker plot:

Click the Home  New Graph  Statistical  Vertical Box Plot;Home  New Graph  Statistical  Notched Vertical Box Plot; Home  New Graph  Statistical  Horizontal Box Plot; or Home  New Graph  Statistical  Notched Horizontal Box Plot command

Select a data file in the Open Worksheet dialog. You can select a new data file or you can select an open data file in the Open worksheets section.

Click the Open button. A boxwhisker plot is created using the default properties.
Editing Box Plot Properties
To change the features of a boxwhisker plotâ€” including the columns used to create the plotâ€” first select the box plot in the plot window or Object Managerand then edit its properties in the Property Manager.
Click the following tabs in the Property Manager to change different properties:
See Also