Hello! I've fitted a time series to the exponential power density (Subbotin) with the following function: library(MASS) dep<- function(x,location,scale,tail) # Exponential power (=Subbotin) { const<- 2*scale*tail^(1/tail) *gamma(1+1/tail) z<- (x-location)/scale exp(-1/tail*abs(z)^tail)/const } x <- rt(100,df=3) a <- fitdistr(x, dep, start=list(location=0, scale=1, tail=1.5)) print(a$estimate) print(a$sd) Now i want to test the goodness of fit with the Kolmogorow-Smirnov Test! How can i do this? thank you very much! Sara --