Increasing (or decreasing) the memory available to R processes -

i increase (or decrease) amount of memory available r. methods achieving this?

from:

http://gking.harvard.edu/zelig/docs/how_do_i2.html (mirror)

windows users may error r has run out of memory.

if have r installed , subsequently install more ram, may have reinstall r in order take advantage of additional capacity.

you may set amount of available memory manually. close r, right-click on r program icon (the icon on desktop or in programs directory). select ``properties'', , select ``shortcut'' tab. ``target'' field , after closing quotes around location of r executible, add

--max-mem-size=500m

as shown in figure below. may increase value 2gb or maximum amount of physical ram have installed.

if error r cannot allocate vector of length x, close out of r , add following line ``target'' field:

--max-vsize=500m

or appropriate. can check see how memory r has available typing @ r prompt

memory.limit() 

which gives amount of available memory in mb. in previous versions of r needed use: round(memory.limit()/2^20, 2)