Description Usage Format Source

Data example for analyzing the primary response in ODS design (zhou et al. 2002)

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A matrix with 400 rows and 5 columns. The first 200 observations are from the simple random sample, while 2 supplemental samples each with size 100 are taken from one standard deviation above the mean and below the mean, i.e. (Y1 < 0.162) and (Y1 > 2.59).

- Y1
primary outcome for which the ODS sampling scheme is based on

- X
expensive exposure

- Z1
a simulated covariate

- Z2
a simulated covariate

- Z3
a simulated covariate

A simulated data set

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