PROBLEM
The proportional symbols method can cause some features not to display.
The proportional symbols method only works with positive values. If the value field has values less than or equal to zero, a message box will alert you of the exclusion these values. If these values are not excluded, the features will not be drawn.
A. Click the Query tab.
C. Double-click the field with exclusion value.
D. Double-click an operator.
E. Double-click the value exclusion value. If value isn't listed, click the Complete List button.
F. Click Apply to execute the expression and exclude values.
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