Estimate Means

Provides a table of means, standard deviations, and confidence intervals for each group or level mean.

Usage

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

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

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

# S3 method for bsm
estimateMeansSet(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

SE

the standard errors for the variables or groups

df

the degrees of freedom for the variables or groups

LL

the lower limits of the confidence intervals of the means

UL

the upper limits of the confidence intervals of the means