Value of the observed maximum, either as the MRO, as taint, or as the overstatement of the margin in votes.
asTaint
Set asTaint = TRUE if t is the maximum observed taint.
asNumber
Set asNumber if t is the maximum observed overstatement of the margin in votes.
M
A priori margin. If NULL, M defaults to 1.
Details
Creates values u and margin M that can
be passed into the branch and bound function.
The following definitions for u and M are described
in Higgins, Rivest, Stark.
The quantity e.max is obtained through maximumMarginBound.
Default u = e.max - min(e.max, t). M = M - sum(min(e.max, t)).
asTaint = TRUE u = e.max*(1 - t). M = M - sum(e.max*t)
asNumber = TRUE Same as Default with t = t/Z$Margin.
The output of getEbsMargin is a list consisting of
MThe updated margin.
uThe updated value vector.
References
M. Higgins, R. L. Rivest, P. B. Stark.
Sharper p-Values for Stratified Election Audits