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cusum

The goal of cusum is to provide functions for constructing and evaluating CUSUM charts and RA-CUSUM charts with focus on false signal probability.

Installation

You can install the released version of cusum from CRAN with:

install.packages("cusum")

Or the pre-release version from github with:

devtools::install_github("lhubig/cusum")

Example

This is a basic example which shows you how to construct CUSUM charts with simulated control limits:

library(cusum)

limit <- cusum_limit_sim(failure_probability = 0.05,
                          n_patients = 100,
                          odds_multiplier = 2,
                          n_simulation = 1000,
                          alpha = 0.05,
                          seed = 2018)
print(limit)
#> [1] 2.696187
set.seed(2018)
patient_outcomes <- as.logical(rbinom(n = 100, size = 1, prob = 0.05))

cs <- cusum(failure_probability = 0.05,
            patient_outcomes,
            limit,
            odds_multiplier = 2)

plot(cs)

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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