Memory usage with R

I am brand new to KNIME (day 3) and am already a huge fan.

I am using it for data reduction. I then export a flatfile. I subsequently import the flatfile to R for further processing (a linear discriminant analysis).

In R, I often encounter memory errors such as "Cannot allocate vector of size 2.4 Gb"

Now, one thing I have noticed about KNIME is its outstandingly efficient use of memory.

QUESTION:

I know I can make an R node in KNIME.

Will KNIME handle the memory for the R node  or will I get exactly the same memory problems as I get when running in RStudio?

again, thanks for KNIME!

jake