Specifications

CHAPTER 14 Working with Crosstabs
Users Guide 433
The first-quarter sales of Cosmic printers displays in the first data cell. (As you
can see from the data in the
Printer table shown before the crosstab, in Q1
Simpson sold 33 units, Jones sold 5 units, and Perez sold 26 units—totaling 64
units.) InfoMaker calculates each of the other data cells the same way.
To create this crosstab, you only have to tell InfoMaker which database
columns contain the raw data for the crosstab, and InfoMaker does all the data
summarization automatically.
What crosstabs do
Crosstabs perform two-dimensional analysis:
• The first dimension is displayed as columns across the crosstab.
In the preceding crosstab, the first dimension is the quarter, whose values
are in the Quarter column in the database table.
• The second dimension is displayed as rows down the crosstab.
In the preceding crosstab, the second dimension is the type of printer,
whose values are in the Product column in the database table.
Each cell in a crosstab is the intersection of a column (the first dimension) and
a row (the second dimension). The numbers that appear in the cells are
calculations based on both dimensions. In the preceding crosstab, it is the sum
of unit sales for the quarter in the corresponding column and printer in the
corresponding row.
Crosstabs also include summary statistics. The preceding crosstab totals the
sales for each quarter in the last row and the total sales for each printer in the
last column.
How crosstabs are
implemented in
InfoMaker
Crosstabs in InfoMaker are implemented as grid reports. Because crosstabs are
grid reports, you can resize and reorder columns when you run the crosstab.
Running a crosstab
You can run a crosstab by previewing it in the Report painter and by running it
from an executable file.
Two types of crosstabs
There are two types of crosstabs:
• Dynamic
• Static