mde_power power
One additional column that can be included on the residual listing is the marginal detectable error (MDE). This is smallest error that will be flagged with a given confidence. The confidence that a bad observation will be flagged is termed the power of the test. The mde_power command defines this power. For example if the flag significance level (for the ?flag) is 95% and the MDE power is 80%, then the value that will be shown for an observation is the smallest error that there would need to be in the observation in order to be 80% confident that it would be flagged at the 95% significance level.
power
Defines the power for which the marginal detectable error is calculated as a percentage.