getLineContrast: Generate contrasts
Description
Generates contrasts for testing monotonicity based on the OECD guidance for statistics.
Usage
getLineContrast(Data, Treatment)
getQuadContrast(Data, Treatment)
Arguments
Treatment
The name (as a string) of the treatment variable.
Value
Returns a numeric vector of contrasts.
References
OECD SERIES ON TESTING AND ASSESSMENT Number 54