Regionally distributed, lithologically controlled variables are generally extracted first and then the more local pathway/origin controlled variables are identified (Lawrence and Upchurch 1982).
The difference in the means of controlled variables contributes mainly to the wage gap.
To verify the hypotheses of this research, time and demographical variables were used as controlled variables.
Controlled variables should not be affected by the treatment variable of interest [42, 43].
Cumulative sum (CUSUM) chart is a general method in statistical control engineering to monitor controlled variables.
Skogestad (2000) presented a method for selecting controlled variables based on steady-state economics.
Self-optimizing control is a promising method for finding appropriate controlled variables.
In this approach both the manipulated and controlled variables are discretized along the expected solution trajectory.
Moreover, state estimation and inference algorithms are necessary whenever unmeasurable states or controlled variables exist.
A degrees of freedom analysis is provided for identifying potential manipulated and controlled variables.
