[Rd] [R] plot cdf
maechler at stat.math.ethz.ch
Tue May 2 08:42:17 CEST 2006
>>>>> "FrPi" == François Pinard <pinard at iro.umontreal.ca>
>>>>> on Mon, 1 May 2006 17:51:06 -0400 writes:
FrPi> [Martin Maechler]
>> The default is 'ask = dev.interactive(orNone = TRUE)'
>> where dev.interactive() has also been extended with the
>> 'orNone' argument.
FrPi> Thanks, Martin! :-) (As I'm not aware of the meaning
FrPi> of this `orNone' argument, I cannot fully appreciate
FrPi> yet the extent of your solution.)
FrPi> `?dev.interactive' says:
FrPi> Test if an interactive graphics device is in use.
FrPi> I'm not sure what is the meaning of "in use" in that
FrPi> sentence. An interactive device may be opened, while
FrPi> not being current, so some may say that this device is
FrPi> in use, others may say that it is not. I'm not
FrPi> English speaking, but yet, I would dare to suggest
FrPi> Test if the current graphics device is interactive.
Thank you, François, for the suggestion. Yes, it's the above,
and I agree it's clearer than the current text.
The new possibility
dev.interactive(orNull = TRUE)
also returns TRUE when there is no current device
*and* the default device is an interactive one.
FrPi> Test if some opened interactive graphics device is
FrPi> rephrased in correct English if needed.
FrPi> `ask' would ideally be TRUE if the _current_ device is
FrPi> interactive. If there is a used (opened) device which
FrPi> is interactive, but the current device is not
FrPi> interactive, it would then be nicer if `ask' was
indeed; and that's the case.
FrPi> -- François Pinard http://pinard.progiciels-bpi.ca
More information about the R-devel