R Graphics l 输入输出 png("scatterplot.png") plot(rnorm(1000)) dev.off() png("scatterplot.png",height=600,width=600) plot(rnorm(1000)) dev.off() png("scatterplot.png",height=4,width=4.units="in") plot(rnorm(1000)) dev.off() png("scatterplot.png",res-600) plot(rnorm(1000)) dev.off() o电 pdf("scatterplot.pdf") 0 00 plot(rnorm(1000)) 200 400 600 800 1000 dev.off() Indexpng("scatterplot.png") plot(rnorm(1000)) dev.off() png("scatterplot.png", height=600, width=600) plot(rnorm(1000)) dev.off() png("scatterplot.png", height=4, width=4,units="in") plot(rnorm(1000)) dev.off() png("scatterplot.png",res=600) plot(rnorm(1000)) dev.off() pdf("scatterplot.pdf") plot(rnorm(1000)) dev.off() R Graphics I 输入输出