Box and whisker plot

Box and whisker plot icon

Display the distribution of numeric data through their quartiles by creating a box & whisker plot. Add a categorical variable to compare the data within each category.


Box and whisker plots display a five-number summary of the data distribution. The values included in the summary are minimum, maximum, lower quartile, upper quartile and median. The lines, known as the whiskers, extending out from the boxes show the variation outside of the quartiles.

Run the Box and Whisker module by selecting a numerical variable (y). To show the data distribution per category, select a categorical group variable (group).


The example box and whisker plot below shows the comparison of sepal length distributions between different flower species.


Variable name Required Constraints Description
y Yes Column Input. Integer, Decimal Numerical variable upon which the data distribution will be plotted.
group No Column Input. Text, Integer, Boolean, Date, DateTime Categorical variable upon which grouping will occur.
notch Yes Boolean Adds a notch in the middle of each bar. Signals significance of the difference of medians between groups, default to off.
notchwidth Yes Decimal ranging from 0 to 1 Manually edit notchwidth.
whisker_coef Yes Decimal > 0 Determines the length of boxplot whiskers, defaults to 1.5. The whisker extends from the hinge to the largest (or lowest) value no further than `whisker_coef` multiplied by the inter-quartile range.

See Also

Updated on July 22, 2021

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