Hysteresis or persistence rule to prevent oscillation

Set how long a signal must hold, or how far it must recover, before you actually switch modes. It stops one noisy reading from flipping you into a new plan and back, which costs more than either mode.

Set how long a signal must hold, or how far it must recover, before you actually switch modes. It stops one noisy reading from flipping you into a new plan and back, which costs more than either mode.

Example

One slow invoice month drops runway to 8.6 months. Your rule: cut discretionary spending only after two straight months below nine, and return to normal spending only once runway climbs back above 11, not at 9.1.