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mratios (version 1.4.2)

Ratios of Coefficients in the General Linear Model

Description

Performs (simultaneous) inferences for ratios of linear combinations of coefficients in the general linear model, linear mixed model, and for quantiles in a one-way layout. Multiple comparisons and simultaneous confidence interval estimations can be performed for ratios of treatment means in the normal one-way layout with homogeneous and heterogeneous treatment variances, according to Dilba et al. (2007) and Hasler and Hothorn (2008) . Confidence interval estimations for ratios of linear combinations of linear model parameters 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 confidence interval are provided assuming homogeneous or heterogeneous group variances.

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Version

Install

install.packages('mratios')

Monthly Downloads

1,345

Version

1.4.2

License

GPL-2

Last Published

June 19th, 2020

Functions in mratios (1.4.2)

angina

The angina data set
BW

Body weights measured in a toxicological study
AP

Angina pectoris data
Mutagenicity

Mutagenicity assay
SRAssay

Slope ratio assay of panthotenic acid contents in plant tissues
DiabeticMice

Serum albumin of diabetic mice
Penicillin

Comparing 6 strains with respect to production of antibiotics
contrMatRatio

Creates numerator and denominator contrast matrices for ratio-based hypotheses for common multiple comparison and trend test problems
ASAT

ASAT data
bnct

Boron neutron capture therapy (BNCT)
print.sci.ratio

Print function for sci.ratio objects
mcpqest

Point and variance estimation for quantiles of independent groups of samples
gsci.ratio

Simultaneous confidence intervals for ratios of linear combinations of parameters.
rat.weight

Body weight of rats in a toxicity study
sci.ratio

Simultaneous confidence intervals for ratios of linear combinations of means
print.simtest.ratio

Print out the results of simtest.ratio
mcpqrci

Simultaneous confidence intervals for contrasts of quantiles
mratios-package

mratios
ttestratio

t-test for the ratio of two means
sci.ratio.gen

Simultaneous confidence intervals for ratios of coefficients in the general linear model
sci.ratioVH

Approximate simultaneous confidence intervals for ratios of means when variances are heterogeneous
n.ratio

Sample size computation in simultaneous tests for ratios of means
plot.sci.ratio

Plot output for sci.ratio and sci.ratio.gen
summary.sci.ratio

Summary function for sci.ratio
summary.simtest.ratio

Summary function for simtest.ratio
simtest.ratio

Simultaneous tests for ratios of normal means
simtest.ratioVH

Approximate simultaneous tests for ratios of normal means with heterogeneous variances