I am playing with memory limits and trying to understand how R allocates 
and increases available memory.

Here is what I have:

> memory.limit()
[1] 536068096
> memory.limit(size = memory.limit()*2)
Error in memory.size(size) : cannot decrease memory limit
> memory.limit(size = 1024^3)
Error in memory.size(size) : cannot decrease memory limit
> memory.limit(size = 1073741824)
Error in memory.size(size) : cannot decrease memory limit
>
> version
         _ 
platform i386-pc-mingw32
arch     i386 
os       mingw32 
system   i386, mingw32 
status 
major    1 
minor    9.1 
year     2004 
month    06 
day      21 
language R 
>

What am I doing wrong here?

Thanks in advance,
Partha


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