Creating a Bivariate Thematic Map
A bivariate thematic map uses point or line objects to
represent two variables. For instance, a colored circle
could represent a particular company while the size of the
circle would represent the number of orders for that
company. There are, however, limitations to this type of
1.Only works with point objects.
2.At least one
of the maps must be based on a numeric variable.
thematics are limited to: 2 Ranged OR 1 Ranged and 1
In the following example, the table CUSTOMER will be
shaded by company name and then by ranged amount of sales.
First Map: Individual Thematic Map of CUSTOMER based on
1.Open the table that you are working with. (File > Open
Table > CUSTOMER.TAB)
first thematic map for company name. (Map > Create
Thematic Map > Individual)
At step 3 of 3
(Preview) select OK
This will leave you with thematically shaded points and a
single legend (above).
Second Map: Ranges based on Order
second ranged thematic map. (Map > Create Thematic Map >
Ranges) This map will be created on the numeric variable
2.At step 3 of
3, click on Styles, then click on <<OPTIONS. In the APPLY
section, select the size option.
Click OK and then OK again to leave Step 3 of 3.
bivariate thematic map displays the company by color and
the order amount by the size of the circle.
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