title: How to set memory limit in RStudio (desktop version)?
body: <p>I'm aware that there has already been a similar question <a href="https://stackoverflow.com/questions/5328480/how-to-set-memory-limit-in-rstudio-on-windows-vista-at-startup">here</a>, but the answer is out-of-date. The information I've found in the internet refers to RStudio Server rather than Desktop.</p>
  
  <p>I have limited resources on my Windows 7 x64 PC. I've set the environment variable R_MAX_MEM_SIZE and this is accepted by the RGui (as seen when typing <code>memory_limit()</code>). However, RStudio (Version 0.98.507) ignores this setting and still uses the entire memory of my computer which sometimes leads to crashes of the whole system. How can I limit the amount of memory used by R when running it in RStudio Desktop?</p>