Basic Analysis and Graphing - SAS

Chapter 11 Creating Summary Charts 317
Example of the Chart Platform
Table 11.1 Description of the Chart Launch Window (Continued)
Percent for quantiles
Sets the specific quantile when the Quantiles statistic is selected for at least
one Y variable. The default value is 25. Specify a different quantile:
1. Type the value in the Percent for quantiles box.
2. Select a column.
3. Click Statistics.
4. Select Quantiles from the menu of statistics.
For more information about the launch window, see Using JMP.
After you click OK, the Chart report window appears. See “The Chart Report” on page 320.
Plot Statistics for Y Variables
You can plot the raw data for Y variables, or you can plot as many statistics as you want on the y-axis. The
Statistics menu in the Chart launch window lists the available statistics. To specify the y-axis, highlight one
or more numeric columns in the Select Columns list and select from the list of statistics. If all the statistics
requested are counting statistics (for example, N) for the same column, that column is used as the category
variable.
The available statistics in the Chart platform are described in the following table. They are the same as those
computed by statistical platforms in the Analyze menu and the Summary command in the Tables menu.
Data
N
The value of each row in the data table when there is no categorical variable. If there is a
categorical variable, Data produces a point plot within the variable’s levels.
The number of nonmissing values. Also used to compute statistics when there is no
column assigned as a weight variable. The Chart platform shows N for each level of a
categorical variable.
% of Total The percentage of the total number of rows represented by each level of the Categories, X,
Levels variable. If summary statistics are requested on a continuous variable, then the %
of Total equals the proportion of the sum represented by each level of the Categories, X,
Levels variable.
N Missing
Min
Max
Sum Wgt
Sum
The number of missing values in each level of a categorical variable.
The least value, excluding missing values, in the level of a categorical variable.
The greatest value in the level of a categorical variable.
The sum of all values in a column assigned as Weight. Also used instead of N to compute
other statistics. Chart shows the sum of the weight variable for each level of a categorical
variable.
The sum of all values in each level of a categorical variable.