The horizontal lines are flattened box plots, which is what happens when box plots are based on a single mark.īox plots are intended to show a distribution of data, and that can be difficult when data is aggregated, as in the current view. We'll change that.ĭrag Region from the Marks card back to Columns, to the right of Segment. It determined that the marks should represent regions. When you changed the chart type to a box plot, Tableau determined what the individual marks in the plot should represent. Also, Tableau reassigned Region from the Columns shelf to the Marks card. Notice that there are only a few marks in each box plot. Now you have a two-level hierarchy of dimensions from left to right in the view, with regions (listed along the bottom) nested within segments (listed across the top).Ĭlick Show Me in the toolbar, then select the box-and-whisker plot chart type. Tableau creates a vertical axis and displays a bar chart-the default chart type when there is a dimension on the Columns shelf and a measure on the Rows shelf.ĭrag the Region dimension to Columns, and drop it to the right of Segment. To create a box plot that shows discounts by region and customer segment, follow these steps:Ĭonnect to the Sample - Superstore data source. You can also define a custom box plot where you set the value of each box plot element using an expression.The basic building blocks for a box and whisker plot are as follows:įor information on how to add a reference line, see Reference Lines, Bands, Distributions, and Boxes (Link opens in a new window). You can set the whisker length to a multiple of standard deviations. This preset is based on standard deviations, with the center line representing the average value, and the box start and end points representing one standard deviation variance. This preset is also defined with the box start and end points representing the first and third quartiles, and the center line representing the median, but the whisker length is adjusted by setting a percentile based whisker position. An inter-quartile range represents the difference between the first and third quartiles. Whisker length can be set to 1, 1.5 or 2 inter-quartile ranges. The center line represents the median (second quartile), and the box start and end points represent the first and third quartiles. This preset is based on the original box plot definition by J. You can use one of the three presets, found under Box plot elements in the properties panel, to define your box plot. When using a background image, you can adjust image sizing and position. On the General tab of the styling panel, select a background color (single color or expression) or set the background to an image from your media library. The background can be set by color or to an image. You can customize the background of the chart. On the Chart tab, set the font, font size, and color for the following text elements:Īxis title: Style the titles on the axes.Īxis label: Style the labels on the axes. On the General tab, set the font, emphasis style, font size, and color for the following text elements: Under Appearance > Presentation, click Styling. In the properties panel, expand the Appearance section. You can style the text that appears in the chart. These can be configured in the properties panel. The visibility of the different labels on the chart depends on chart-specific settings and label display options. To hide these elements, turn off Show titles. You can set the text for the title, subtitle, and footnote under Appearance > General. Clicking Reset all resets styles in both General and Chart. You can reset your styles by clicking next to each section. The styling panel contains various sections under the General and Chart tabs. You have a number of styling options available under Appearance in the properties panel.Ĭlick Styling under Appearance > Presentation to further customize the styling of the chart. For information about customizing other aspects of the chart's appearance, see Changing the appearance of a visualization. For information about styling, see Styling the box plot. When you have created the bar chart, you may want to adjust its appearance and other settings in the properties panel. When you have created the box plot, you may want to adjust its appearance and other settings in the properties panel. The measure does not have to contain an aggregation. This is the outer dimension, which defines the boxes shown on the dimension axis.Ĭlick Add measure and create a measure from a field. This is the inner dimension, which defines a box. From the assets panel, drag an empty box plot to the sheet.
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