pooledVarDataAccess: Differentially Private Pooled Variance Data Access Function
Description
This function performs the data access step in the computation of a
differentially private pooled variance. The true values are computed using
the theoretical formula and var, while the sensitivities
are calculated based on bounded and unbounded differential privacy
Kifer2011DPpack according to the theoretical values
Liu2019bDPpack.
List of the true pooled variance and the sensitivities calculated
based on bounded and unbounded differential privacy.
Arguments
samples
List of vectors from which to compute the pooled variance.
lower.bound
Real number giving the lower bound of the input data.
upper.bound
Real number giving the upper bound of the input data.
approx.n.max
Logical indicating whether to approximate n.max, which is
defined to be the length of the largest input vector. Approximation is best
if n.max is very large.