png("c:\\plot\\beta_dist.png", width = 1024*1.3, height = 768*1.3) par(mfrow=c(4,9)) for(a in alpha){ for(b in beta){ y <- dbeta(x, a, b) plot(x, y, type="l", ylab=paste0("a=",a), main=paste0("b=", b)) print(paste(a, ", ", b)) } } par(mfrow=c(1,1)) dev.off()