If you have created
a summarized column, you can choose to classify your data into groups
based on the values in a column. This is equivalent to using the GROUP
BY clause in an SQL query. For example, if you are calculating the
average height of a group of students, you might want to group the
results by age so that you can see the average height for each age
group.
By default, when you
perform a summary function on a column, your query is grouped by all
columns without summaries. You can choose to edit the list of columns
that the query is grouped by.
To group your output:
-
In the query window,
click the
Group tab.
-
You can add one or more
columns to the Group tab by dragging them from the columns list to
the Group tab. You can also click
on the Group tab toolbar and select one or more columns
from the Choose Column window.
-
To change the order
in which the columns are used to group the data, select the column
that you want to move and click
and
.
The following example
shows you how to find the average weight of students in each age group.
First, add the Age and Weight columns to the Select tab, and then
select the AVG summary function for the Weight column:
To see the average weight
of students by age, you group by the Age column. The results show
the average weight for each age group:
Note: By default, the query generates
a table of the result. To generate a report of the results (which
is displayed in
Results tab), you must specify
report as the output type for the query.
For more information,
see
Saving Your Results.