Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Boxplot of error on the estimated β value with the stochastic approximation expectation maximization algorithm and for a covariate effect on volume (V), according to scenarios 1 or 2, the design, the simulated covariate effect value, and the number of subjects. Boxplots represent the median, quartiles, and 5–95% percentiles. Colors stand for the design and the scenario. For D5, pale and dark areas are used, respectively, for designs with 500 and 200 subjects. Sc., scenario.
