Free R packages, R code and R examples

Calculation of probabilities for inadequate and excessive gestational weight gain

The following source code and examples are used for Calculation of probabilities for inadequate and excessive gestational weight gain that calculates positive predictive values (PPV) and negative predictive values (NPV) for inadequate and excessive gestational weight gain (GWG) for different prevalences for different BMI categories.

Optimal stratification of sampling frames for multipurpose sampling surveys

The following source code and examples are used for Optimal stratification of sampling frames for multipurpose sampling surveys that offers an approach for the determination of the best stratification of a sampling frame, the one that ensures the minimum sample cost under the condition to satisfy precision constraints in a multivariate and multidomain case.

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