checkBalanceSite        Checking of site-specific covariate balance
                        before and after weighting
computeInfoForTable1    Computation of summary-level information needed
                        for the creation of a "Table 1" of baseline
                        patient characteristics
createRisksetTable      Creation of summary-level riskset tables from
                        individual-level data
createTable1            Creation of an overall "Table 1" of baseline
                        patient characteristics before and after
                        weighting
estimateSiteHRs         Privacy-protecting estimation of site-specific
                        hazard ratios using inverse probability
                        weighted Cox models
estimateStratHR         Privacy-protecting estimation of overall hazard
                        ratios using inverse probability weighted Cox
                        models stratified on data-contributing sites
ppmHR-package           Privacy-Protecting Hazard Ratio Estimation in
                        Distributed Data Networks
site1                   Example individual-level data of
                        data-contributing site 1
site2                   Example individual-level data of
                        data-contributing site 2
site3                   Example individual-level data of
                        data-contributing site 3
