Gaussbound: Compute the Gauss bounds for a random variable.
Description
This is a simple function that computes bounds for a credible interval
according to Gauss's inequality. If a random variable has a Lebesgue density
with a single mode (mode
) and a finite expected squared
deviation (tau
^2) from this mode,
then Gauss's inequality tells us that at least a
given proportion (prob
) of the distribution's mass lies within a
finite symmetric interval centred on the mode.
Usage
Gaussbound(mode, tau, prob)
Value
- bounds
An ordered vector containing the lower and upper bounds of the interval.
Arguments
- mode
Numeric. The location of the density's mode.
- tau
Numeric. The square root of the expected squared deviation from the mode.
- prob
Numeric. A lower bound on the probability mass that is contained within the interval
References
Pukelsheim, F. (1994) The Three Sigma Rule. The American Statistician
48, 88-91.