Points

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Essential Graphing • Graph Builder • Element Types and Options • Points

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The Points element

shows data values as points.

Figure 3.25 Points Options

You can change the following properties:

Summary Statistic

Changes the statistic being plotted. The statistic is calculated using the variable on the Response Axis. None is the default setting, indicating that the data values themselves are plotted.

Adds or removes error bars in the graph.

Changes the axis that is associated with the response variable to X (horizontal), Y (vertical), or Auto (the Y axis for Points). The variable on the Response Axis is used to calculate the Summary Statistic.

Jitter adds random noise to values to reduce over-plotting. Choose from the following types of jitter:

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None—No adjustments are made.

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Auto—Adds various types of jitter when categorical variables are involved. No jitter is added when you have only continuous variables.

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Random Uniform—Random offset with uniform distribution.

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Random Normal—Random offset with Gaussian distribution.

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Packed—Places markers tightly to preserve any non-jittered dimensions.

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Centered Grid—Similar to Packed, but adjusts the non-jittered dimensions to fall into a grid.

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Positive Grid—Similar to Center Grid, but in the positive direction.

You can also customize jitter by right-clicking and selecting Customize > Marker.

Tip: To create a dot plot, select the Positive Grid option. You can move the dot plot to start at the bottom by changing the Y-axis values to 0-1. You can also resize the markers to a larger value, such as 20, to adjust the binning of the dots.

Controls the spread or amount of overlap.

Shows or hides graph elements for variables, or re-orders the display of variables.

Note: These options do not apply to variables in the Group X, Group Y, Wrap, or Page zones.

Check boxes are followed by the zone designation and the name of the variable. Use check boxes to do the following:

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Show or hide the elements corresponding to a variable in a zone.

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Add or remove the effect of applying the Color, Size, Shape, or Freq variable to the variable in the zone.

Tip: If you have multiple graphs, you can color or size each graph by different variables. Drag a second variable to the Color or Size zone, and drop it in a corner. In the Variables option, select the specific color or size variable to apply to each graph.

Use arrows to re-order the display if there are multiple variables in a zone. Highlight a variable name and click an arrow to reposition it.

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Help created on 3/19/2020