With this package, it is possible to perform (simultaneous) inferences for
ratios of linear combinations of coefficients in the general linear model.
In particular, tests and confidence interval estimations for ratios of
treatment means in the normal one-way layout and confidence interval
estimations like in (multiple) slope ratio and parallel line assays can be
carried out. Moreover, it is possible to calculate the sample sizes
required in comparisons with a control based on relative margins. For the
simple two-sample problem, functions for a t-test for ratio-formatted
hypotheses and the corresponding Fieller confidence interval are provided
assuming homogeneous or heterogeneous group
variances.