知行代码之后,为什么文件名变为4?
with(airquality,plot(Wind,Temp,
main = "wind and temp in NYC"))
dev.copy(png,file("mycopy.png"))
dev.off()
with(airquality,plot(Wind,Temp,
main = "wind and temp in NYC"))
dev.copy(png,file("mycopy.png"))
dev.off()
2019-07-21
举报