library(MPDiR) # contains the Vernier data
data(Vernier) # ?Venier for the reference
fit <- quickpsy(Vernier, Phaseshift, NumUpward, N,
grouping = .(Direction, WaveForm, TempFreq), B =20,
thresholds = FALSE)
thresholds(fit, prob = .5)Run the code above in your browser using DataLab