Laurent Houdusse wrote: >>Have you attached the package? >> library(nortest) > > > Yes, but there is no return > > For me install.packages("nortest") library(nortest) lillie.test(rnorm(100, mean = 5, sd = 3)) works: Lilliefors (Kolmogorov-Smirnov) normality test data: rnorm(100, mean = 5, sd = 3) D = 0.0581, p-value = 0.5571 Uwe Ligges