Estimate Means Relational

Provides a table of arelational (confidence) and relational (comparative) intervals for each group or level mean.

Usage

# S3 method for data.frame
estimateMeansRelational(frame, conf.level=.95, ...)

# S3 method for formula
estimateMeansRelational(formula, conf.level=.95, ...)

# S3 method for wsm
estimateMeansRelational(moments, conf.level=.95, ...)

# S3 method for bsm
estimateMeansRelational(moments, conf.level=.95, ...)

Arguments

frame

a set of (non-empty) numeric vectors of data values

formula

a formula of the form lhs ~ rhs where lhs is a numeric variable giving the data values and rhs a factor giving the corresponding groups

moments

a matrix/frame of descriptive/summary statistics

conf.level

confidence level of the interval

Value

The returned frame contains the following components:

M

the means for the variables or groups

CI.LL

the lower limits of the confidence intervals of the means

CI.UL

the upper limits of the confidence intervals of the means

RI.LL

the lower limits of the relational intervals for the means

RI.UL

the upper limits of the relational intervals for the means

References

Wendorf, C. A. (2012). Drawing inferences from multiple intervals in the single-factor design: Derivations, clarifications, extensions, and representations. Methodology European Journal of Research Methods for the Behavioral and Social Sciences, 8, 125-133.