Creating a Plot Window of a Particular Size

Question

How can I create a new on-screen R plot window with a particular width and height  in pixels  etc

User · Answer

As the accepted solution of  Shane is not supported in RStudio  see here  as of now  Sep 2015   I would like to add an advice to  James Thompson answer regarding workflow   If you use SumatraPDF as viewer you do not need to close the PDF file before making changes to it  Sumatra does not put a opened file in read-only and thus does not prevent it from being overwritten  Therefore  once you opened your PDF file with Sumatra  changes out of RStudio  or any other R IDE  are immediately displayed in Sumatra

User · Answer

This will depend on the device you re using  If you re using a pdf device  you can do this   pdf   mygraph pdf   width   11  height   8   plot  x  y     You can then divide up the space in the pdf using the mfrow parameter like this   par  mfrow   c 2 2      That makes a pdf with four panels available for plotting  Unfortunately  some of the devices take different units than others  For example  I think that X11 uses pixels  while I m certain that pdf uses inches  If you d just like to create several devices and plot different things to them  you can use dev new    dev list    and dev next      Other devices that might be useful include    X11 postscript BMP  JPEG  PNG and TIFF quartz  OSX only    There s a list of all of the devices here

User · Answer

Use dev new      See this related question    plot 1 10  dev new width 5  height 4  plot 1 20      To be more specific which units are used   dev new width 5  height 4  unit  in   plot 1 20  dev new width   550  height   330  unit    px   plot 1 15      edit additional argument for Rstudio  May 2020    thanks user Soren Havelund Welling   For Rstudio  add dev new width 5 height 4 noRStudioGD   TRUE

User · Answer

A convenient function for saving plots is ggsave    which can automatically guess the device type based on the file extension  and smooths over differences between devices  You save with a certain size and units like this   ggsave  mtcars png   width   20  height   20  units    cm     In R markdown  figure size can be specified by chunk       r  fig width 6  fig height 4    plot 1 5

[r] Creating a Plot Window of a Particular Size

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