memory problem for R

You still have not read the posting guide, have you?

See more below.

From: Yun-Fang Juan

[...]

I tried 10% sample and it turned out the matrix became 
singular after I did that.
Ther reason is some of the attributes only have zero values 
most of the time.
The data i am using is web log data and after some 
transformation, they are all numeric.
Can we specify some parameters in read.table so that the 
program will treat all the vars as numeric
(with this context, hopefully that will reduce the memory 
consumption)  ?

and you clearly have not read my (private) reply, either, in which I told
you *exactly* how to do that, via the colClasses argument to read.table().

Please take the help given to you seriously.  If you want attention, you
have to pay attention.

Andy

thanks a lot,

Yun-Fang

------------------------------------------------------------------------------
Notice:  This e-mail message, together with any attachments,...{{dropped}}