Basu is an interactive sample size/power calculator that exposes the
pwr
package through a customized vectorization. Basu is designed to run on OpenCPU
using a flexdashboard frontend. In the current version, Basu exposes the
functions:
pwr.t.testpwr.p.testpwr.2p.testpwr.r.test
Notice that Basu provides a customized vectorization to the original
pwr_1.2-2 package through the functions vector_pwr and the v.* equivalents
to the pwr.* functions from the pwr package. vector_pwr correctly
vectorizes the calculations of pwr (the CRAN version of pwr is not
vectorized but does not error out if the user passes a vector instead of a
scalar, as expected). The vectorized functions from the basu R package are
prefixed by v.[pwr function] (for instance, v.pwr.p.test to vectorize pwr.p.test).
basu also extends the pwr package to admit an additional argument deff for
the design effect. The design effect only affects the calculation of sample
sizes and it is ignored for all other purposes.
The script setup.R installs the dependencies, including Basu itself
(uninstalling it if necessary) and runs a local OpenCPU server. The dashboard
can also be run as a Docker container.
docker build -t basu .
docker run -p 5656:5656 basu