par(mar = c(1,1,1,1)) a<-c(1,0,1,1) plot( 1,1, type = "n", xlim = c(1,4),ylim = c(0,6), axes = F, xlab = "",ylab = "") matlines( x = 1:4, y = cbind(a,a+1,a+2,a+3,a+4,a+5), col = "black", lty = 1:6, lwd = 2) text( x = rep(2,6), y = (1:6)-0.75, labels = as.character(1:6)) box()