Longitudinal data arise whenever repeated measurements are taken on the same experimental units over time or under varying conditions. Generalized estimating equations (GEE) provide a popular marginal ...
A new acentric factor correlation, based on Pitzer’s1 definition of the acentric factor and a correlation of Antoine’s equation,2 accurately predicts the acentric factor of hydrocarbons and other ...
A categorical variable is defined as one that can assume only a limited number of values. For example, a person's sex is a categorical variable that can assume one of two values. Variables with levels ...
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