varDataAccess: Differentially Private Variance Data Access Function
Description
This function performs the data access step in the computation of a
differentially private variance. The true values are computed using
var, while the sensitivities are calculated based on
bounded and unbounded differential privacy Kifer2011DPpack
according to the theoretical values Liu2019bDPpack. For the
variance, the sensitivities based on bounded and unbounded differential
privacy are identical, so only one value is returned.
Usage
varDataAccess(x, lower.bound, upper.bound)
Value
List of the true variance and the sensitivity calculated based on
theoretical values.
Arguments
x
Dataset whose variance is desired.
lower.bound
Scalar representing the global or public lower bound on
values of x.
upper.bound
Scalar representing the global or public upper bound on
values of x.