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The goal of observationalBlocks is to create block designs of fixed size J with at least one treated and control unit per block. Blocks larger than pairs better distinguish effects caused by a treatment from unmeasured confounding in assignment of individuals to treatment. Somewhat counterintuitively, blocks larger than pairs can use more units while attaining better covariate balance and block homogeneity. A forthcoming manuscript by Brumberg and Rosenbaum details the design.
You can install the release version of observationalBlocks from CRAN with:
install.packages("observationalBlocks")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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