我正在阅读R帮助页面?devAskNewPage(它是从中链接的?par...ask).我无法理解是什么par(ask=F)/ par(ask=T)做什么.
我需要阅读以了解这一点:
If the current device is the null device, this will open a
graphics device.
...
The precise circumstances when the user will be asked to confirm a
new page depend on the graphics subsystem. Obviously this needs
to be an interactive session. In addition ‘recording’ needs to be
in operation, so only when the display list is enabled (see
‘dev.control’) which it usually is only on a screen …