marin: Marin Measure B Reported Results

In elec: Collection of Functions for Statistical Election Audits

Marin Measure B Reported Results

Description

These are the reported vote totals from the 2009 election in Marin, CA for Measure B.

Note the vote totals for the VBM strata are made up. The batches are the “Decks”, which could not be individually tallied with ease. The work-around was complex. See the references, below.

Format

A data frame with 544 observations on the following 5 variables.

PID

Batch ID

strata

There are two levels, ST-IB ST-VBM for in-precinct and Vote-by-Mail.

tot.votes

total ballots cast in the batch.

Yes

Number recorded for Yes

No

Number recorded for No

Source

Marin, CA 2009 reported election results.

References

See J. L. Hall, L. W. Miratrix, P. B. Stark, M. Briones, E. Ginnold, F. Oakley, M. Peaden, G. Pellerin, T. Stanionis, and T. Webber. Implementing risk-limiting audits in california. USENIX EVT/WOTE in press, July 2009.

Examples

data(marin)
marin = elec.data( marin, C.names=c("Yes","No") )

# Hand fixing error bound due to unknown
# vote totals in the VBM decks
marin$V$e.max = maximumMarginBound(marin)
sum( marin$V$e.max )   # 7.128
vbm = marin$V$strata=="ST-VBM"
marin$V[ vbm, "e.max" ] = 2 * marin$V[ vbm, "tot.votes" ] / marin$margin

sum( marin$V$e.max )   # 9.782

elec documentation built on April 27, 2022, 1:05 a.m.