It's apparently a unix command; www.r-project.org - search - R
site search - sed produced at least one hit with the following example:
scan(pipe(sed -e s/,$// data2), sep=,)
For the rest of this comment, see the R site search. hope this
helps. spencer graves
Yong Wang wrote:
Dear Spenser et al.,
sed stands for string editor, I believe, and it is a Unix utility,
although there are implementations for other OS's including Windows.
For Yong Wang's problem, I think that it is more natural to use the
na.strings argument to read.table(), as I previously suggested, than to
Dear Yong Wang,
When you read the data with read.table, specify the argument na.strings=..
See ?read.table for details.
I hope that this helps,
John
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Yong Wang
Sent: Saturday, May 29, 2004 8:25 PM
If the data file is in text format, is large with a lot of .s, use sed.
It's MUCH faster than any other tool for this sort of thing.
-Original Message-
From: Yong Wang [mailto:[EMAIL PROTECTED]
Sent: Sunday, May 30, 2004 05:25
To: [EMAIL PROTECTED]
Subject: [R] how to remove . or replace
Samir, can you give an example for the use of sed?
On Sun, 30 May 2004, Samir Mishra wrote:
If the data file is in text format, is large with a lot of .s, use sed.
It's MUCH faster than any other tool for this sort of thing.
-Original Message-
From: Yong Wang [mailto:[EMAIL
