One parameter is dependent upon another if the anchor point and/or the reference point(s) for the second parameter are part of an adjustable point set for the first parameter. You need to be aware of dependent parameters so that you can take into consideration the complete impact on your circuit when the value of the primary parameter is changed. When the primary parameter is changed, a dependent parameter is adjusted, i.e., the anchor point or reference point is moved, along with the primary parameter on which they depend.
To determine if a parameter has any dependent parameters in the circuit, select the parameter, then select Select - Select Dependents from the main menu or right-click on a parameter and select Select Dependents from the pop-up menu which appears. If any dependent parameters are present in your geometry, the dependent parameter is highlighted.