Disturbance

Disturbance stands for:

• a disturbing environmental influence
• in physics generally a parameter that represents a deviation from the ideal model, see perturbation theory
• in control engineering a variable that has a disruptive effect on the controlled variable, see control loop
• In statistics for regression analysis, the difference between a regression line and the measured values, see disturbance variable and residual

This is a disambiguation page for differentiating between several terms identified with the same word.