Symbols represent individual values (continuous scale)

For some graphs, Minitab displays a symbol for each observation. If the graph has groups, the graph can display a separate type of symbol for each group. For example, on the following scatterplot, Minitab displays a symbol for each observation. Each group of observations has a different symbol type (shape and color).

If your graph does not have symbols by default, you can add them. To add symbols when you create a graph, click Data View. To add symbols to an existing graph, click the graph and choose Editor > Add > Data Display. To edit symbols, select and double-click the symbols that you want to edit. For more information on selecting symbols, go to Select groups and single items on a graph.

Edit the appearance of symbols
On the Attributes tab, you can edit the type, color, and size of the selected symbols.
Tip

To change the default settings and attributes for graph elements, choose Tools > Options > Graphics.

Use jitter to reveal overlapping points

(Not available with all graphs) If you have identical data values on your graph, these data points may overlap and appear hidden behind each other. Jitter randomly nudges each point to help reduce overlap. Because jitter is random, the position of each point is slightly different each time you recreate the same graph. To add jitter to a graph, on the Jitter tab, select Add jitter to direction. To adjust the amount of jitter in the X direction and Y direction, enter different values.

On the following individual value plot with no jitter, identical data points are displayed at the same location, so that symbols are behind each other. When the points are jittered, you can see more of them.
No jitter
Jitter

Symbols represent individual values (categorical scale)

For some graphs, like the following individual value plot, each symbol represents a single observation.

To add symbols when you create a graph, click Data View. To add symbols to an existing graph, click the graph and choose Editor > Add > Data Display. To edit symbols, select and double-click the symbols that you want to edit. For more information, go to Select groups and single items on a graph.

Edit the appearance of symbols
On the Attributes tab, you can edit the type, color, and size of the selected symbols.
Tip

To change the default settings and attributes for graph elements, choose Tools > Options > Graphics.

Use jitter to reveal overlapping points

If you have identical data values on your graph, these data points can overlap and appear hidden behind each other. To offset or jitter the symbols for the same points, first select all the points. On the Identical Points tab, select one of the options to move the symbols slightly to reveal overlapping points.

  • Offset symmetrically: Moves overlapping symbols for identical points in the x direction symmetrically from the center. Graphs using this option look the same each time they are generated.
  • Jitter: Jitter randomly nudges each symbol to help reduce overlap. Because jitter is random, the position of each symbol is slightly different each time you recreate the same graph. To adjust the amount of jitter in the X direction and Y direction, enter different values.
  • None: Display identical data points at the same location, so that symbols are behind each other.

Symbols represent summary statistics

For graphs like the following interval plot, Minitab displays symbols at summary statistics, such as the mean, median, or count. On the following interval plot, the symbols within the intervals represent the mean of each group.

To add symbols when you create a graph, click Data View. To add symbols to an existing graph, click the graph and choose Editor > Add > Data Display. To edit symbols, select and double-click the symbols that you want to edit. For more information on selecting symbols, go to Select groups and single items on a graph.

On the Attributes tab, you can edit the type, color, and size of the selected symbols.

Tip

To change the default settings and attributes for graph elements, choose Tools > Options > Graphics.

Dots on dotplots

If possible, Minitab displays a dot for each observation on a dotplot. Otherwise, a footnote indicates the maximum number of observations represented by each dot. For example, on the following dotplot, each dot represents an individual calcium level.

To edit dots, select and double-click the dots that you want to edit. For more information on selecting dots, go to Select groups and single items on a graph.

Edit the appearance of the dots

On the Attributes tab, you can edit the type, color, and size of the selected dots.

Stack or unstack the groups
(Not available with marginal plots) If the dotplot has groups, on the Options tab, select Stack dots of innermost categorical variable to stack the groups.
Stacked groups
Unstacked groups
Change the stacking order of the groups
(Not available with marginal plots) Minitab stacks the groups based on the value order of the grouping column. For more information, go to Change the display order of text values in Minitab output. On the Options tab, select the stacking order for the groups.
Top of stack
The first group is on the top of the stack, the second group is under the first, and so on.
Bottom of stack
The first group is on the bottom of the stack, the second group is on top of the first, and so on.
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