Other Content

• Raw data consists of a single list, such as a list of eye colors. When you
create a plot of raw data, Data&Statistics counts the occurrences for you.
Plotting raw data directly gives you flexibility in analyzing it.
• A summary table consists of two lists, such as eye colors (the XorYList)
and counts of eye-color occurrences (the Summary List). For more
information, see Using Lists&Spreadsheet chapter.
Working with Numeric Plot Types
Plots can represent the data from a variable in a variety of ways. Choosing the
appropriate plot can help you visualize the data. For example, you may be able
to observe the shape and spread of the data in one plot type and another type
may be useful for determining the best method for statistically evaluating data.
Creating Dot Plots
Dot plots, also known as dot-frequency plots, represent one-variable data. Dot
plots are the default plot type for numeric data. When you plot a variable as a
dot plot, one dot represents each value in the list. Each dot displays on the axis
at a point that correspond to the value.
1. To create a dot plot, click the Add Variable region in the center of an axis
and click the name of a numeric variable. For more information, see
Plotting Variables .
2. (Optional) To split a dot plot by category, click the Add Variable region on
the other axis and choose the list that contains the corresponding category
data.
3. (Optional) To plot multiple dot plots, choose Add X Variable on the Plot
Properties menu and click a numeric variable from the list that displays.
A second dot plot appears on the work area and the name of the plotted
variable is added to both axis labels.
4. Explore the plotted data.
- Hover over a data point to display data values.
- Drag a dot to move it. As you move a point, the values associated with
it change on the work area display and in the list for the variable.
- Activate the Graph Trace tool and press ◄or► to move across the
data points in the plot in list order. Points enlarge and display a bold
outline as you move across them in Trace mode.
Data&Statistics Application 361