why the length and width of a plot region produced by the dev.new() function cannot be correctly set?

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From:Duncan Murdoch <murdoch.duncan at gmail.com>
Send Time:2018 May 4 (Fri) 17:24
To:??? <sunyeping at aliyun.com>; David Winsemius <dwinsemius at comcast.net>
Cc:R Help Mailing List <r-help at r-project.org>
Subject:Re: [R] why the length and width of a plot region produced by 
the dev.new() function cannot be correctly set?

On?04/05/2018?3:04?AM,?sunyeping?via?R-help?wrote:

 >
 >?------------------------------------------------------------------From:David?Winsemius?<dwinsemius at comcast.net>Send?Time:2018?May?4?(Fri)?13:25To:????<sunyeping at aliyun.com>Cc:R?Help?Mailing?List?<r-help at r-project.org>Subject:Re:?[R]?why?the?length?and?width?of?a?plot?region?produced?by?the?dev.new()?function?cannot?be?correctly?set?
 >

 >>???On?May?3,?2018,?at?6:28?PM,?sunyeping?via?R-help?<r-help at r-project.org>?wrote:
 >>
 >>???When?I?check?the?size?of?the?plot?region?usingdev.size("in")a?new?plot?region?is?produced?and?in?the?Rconsole?I?get[1]?5.333333?5.322917

 >
 >?Your?test?is?all?mangleed?together.?You?failed?in?your?duty?to?read?the?list?info?and?the?Posting?guide?.?NO?HTML!
 >

 >>???If?I?mean?to?produce?a?plot?region?with?size?setting?bydev.new(length=3,width=3)a?plot?region?is?produced,?but?the?size?is?[2.281250,?5.322917],?as?detected?by?the?de.size?function.?If?I?type:dev.new(length=10,width=10)I?get?a?plot?region?of?with?the?size?of?[7.614583,?5.322917].?It?seems?that?the?width?of?the?new?plot?region?cannot?be?set,?and?tt?is?always?5.322917.?The?length?of?the?new?plot?region?can?be?set,?but?it?is?always?smaller?that?the?values?I?set.What?do?I?miss??What?is?the?correct?way?of?setting?the?dimension?of?the?new?plot?region??I?will?be?grateful?to?any?help.Best?regards,

 >
 >?The?size?of?the?device?is?not?the?size?of?the?plot?region.?You?need?to?take?into?account?the?margins.?See??par
 >?Thank?you,?David.I?have?read?the?par()?document.?Clearly?the?size?of?the?plot?region?is?smaller?than?or?equal?to?the?divice?size.?However,?if?I?produce?a?graphic?device?with?dev.new?(length,?width)?or?other?functions,?I?find?the?largest??width?of?the?new?device?is?always?5.3?inches?whatever?the?values?I?set,?and?the?length?of?it?is?alway?smaller?than?what?I?set.

The?length?and?width?aren't?the?first?and?second?parameters?for?any
device,?and?length?isn't?a?parameter?at?all.??Try

dev.new(height?=?10,?width?=?10)

and?you?should?get?a?bigger?device?if?it?will?fit?on?your?screen.??If?it
won't?fit,?then?you?might?get?a?smaller?one,?and?you'll?need?to?choose?a
non-screen?device?such?as?png()?or?pdf()?instead?of?the?default?device.

Duncan?Murdoch

 ??Could?you?tell?me?how?to?produce?a?graphic?divice?with?correct?size
that?I?set??I?need?this?function?because?the?graphic?divice?cannot
accomendate?all?of?the?graph?I?make?with?some?of?plot?tools?such?as
ggtree.?In?ggtree?plot,?part?of?the?tree?tips?label?are?invisible
(https://www.dropbox.com/s/87gyusx7ay1xxu8/tree.pdf?dl=0)?even?I?set
"par(mar=rep(0,4))".?So?I?think?I?must?plot?the?tree?on?a?larger?graphic
device.??Best?regards.

 >
 >

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