randomizationInference (version 1.0.1)

diffMeans: Single Pairwise Difference of Mean Outcomes

Description

Calculates the difference of mean outcomes for a specified treatment factor and specified pair of comparison levels.

Usage

diffMeans(y, w, calcOptions = NULL)

Arguments

y

a vector or matrix of outcomes.

w

a vector or matrix of assignments.

calcOptions

a list of options for calculating the difference of mean outcomes (if necessary). calcOptions$factor is a number denoting the treatment factor of interest (defaults to 1). calcOptions$pair is a vector (of l

Value

• The difference of mean outcomes.

See Also

diffMeansVector

Examples

## 1 treatment factor with 2 levels
## Assignments and outcomes
w = c(0,0,0,0,0,1,1,1,1,1)
y = c(4,6,5,6,4,11,11,9,10,9)
diffMeans(y, w) ## Equals 5

## 2 treatment factors, each with 3 levels
## Assignments and outcomes
w1 = c(1,2,3,1,2,3,1,2,3)
w2 = c(1,2,3,2,3,1,3,1,2)
w = cbind(w1,w2)
y = c(4,6,5,7,4,7,11,9,10)
diffMeans(y, w,
    calcOptions = list(factor = 2, pair = c(1,3))) ## Equals 0