Box and whisker plot3/31/2023 ![]() Half of the data is above this value, and half is below. The center line in the box shows the median for the data.See the "Comparing outlier and quantile box plots" section below for another type of box plot. Most good statistical software like MINITAB® will be able to include these additional features.The term “box plot” refers to an outlier box plot this plot is also called a box-and-whisker plot or a Tukey box plot. I haven't found a good way to create the following box plot variations in Excel, so I won't describe them in detail, but I've included them here for your information. You can also select an option to show all internal (non-outlier) data points as well. ![]() The new built-in Box and Whisker Chart for Excel 2016+ can show all of the outliers. For reference, the number of upper and lower outliers is given in the table to indicate if there are more outliers than just the max or min. Instead of showing a point for each outlier, the custom box plot template above shows only the max and min values if they are outliers. This is a problem because you don't know how many outliers there will be. The biggest problem with creating your own box and whisker plot in Excel is showing all the outliers - the points that fall outside of the range depicted by the box and whiskers. In the box plot template, the whiskers are created by adding Y-error bars to series 1 (Q1) and series 3 (Q3-Q2). Similar change for the lower whisker.Īnother common convention is that instead of extending the whisker to a calculated value of Q 3+1.5(IQR), the whisker is extended to the last data point that is less than or equal to Q 3+1.5(IQR), and similarly with the lower whisker.
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