[R] increase the usage of CPU and Memory

[Richard R. Liu]

Hello Xi,

Have you tried replacing the for loop by an apply construct, e.g., lapply or sapply?  In my experience these functions are more efficient than for.  At any rate, if you succeed with, say, lapply, there are some R packages that support parallel processing versions.  I believe the package parallel is now part of base R, and a version of multicore's mclapply (which, in multicore, does not support Windows) is available.

Regards,
Richard

Richard R. Liu
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