[R] read.table freezes the computer

[S Ellison]

> -----Original Message-----
> I have a txt file to read into R. The size of it is about 500MB.
> This txt file is produced by calling  write.table(M, file = 
> "xxx.txt"), where M is a large matrix After running MM = 
> read.table("xxx.txt"), the R gui keeps a cpu core/thread 
> fully occupied forever.
> 64 bit R with 16GB RAM on Win7 64, i5 cpu should be capable. 
> So if anyone knows the reason, that will be appreciated.
> Thank you for any advice.
> 

A look at the ?read.table section on 'memory usage' may help. 

In particular, specifying colClasses as numeric is recommended.

S Ellison

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