Re: [Rd] R command line and pipe using in Linux?

2011-02-14 Thread Hang PHAN
Thanks for the prompt reply. I think I have an idea on how to do what I want now. Best regards, Hang On Mon, Feb 14, 2011 at 6:30 PM, Dirk Eddelbuettel wrote: > > On 14 February 2011 at 17:40, Hang PHAN wrote: > | Hi, > | I have a very large data file(GB) from which I only want to extract one >

Re: [Rd] R command line and pipe using in Linux?

2011-02-14 Thread Petr Savicky
On Mon, Feb 14, 2011 at 05:40:29PM +, Hang PHAN wrote: > Hi, > I have a very large data file(GB) from which I only want to extract one > column to draw histogram. This would be done several times, so I would like > to ask if there is anyway to plot this using R from the linux command line, > so

Re: [Rd] R command line and pipe using in Linux?

2011-02-14 Thread Dirk Eddelbuettel
On 14 February 2011 at 17:40, Hang PHAN wrote: | Hi, | I have a very large data file(GB) from which I only want to extract one | column to draw histogram. This would be done several times, so I would like | to ask if there is anyway to plot this using R from the linux command line, | something loo

Re: [Rd] R command line and pipe using in Linux?

2011-02-14 Thread Sean O'Riordain
Good afternoon Hang, This is an example of what I've done with a csv file with a header which is too big to read into memory. # this is a file with about 50 columns and 28 million records ap.fnam <- 'p2_all28m_records.csv' # lets just explore the columns in Addresspoint... # by reading in the hea

[Rd] R command line and pipe using in Linux?

2011-02-14 Thread Hang PHAN
Hi, I have a very large data file(GB) from which I only want to extract one column to draw histogram. This would be done several times, so I would like to ask if there is anyway to plot this using R from the linux command line, something look like this cut -f1 xxx.txt |RplotHist Thanks and h