RE: [R] a little question about R

2004-09-07 Thread John Fox
You can use letters[1:4].
(B
(BI hope that this helps,
(B John 
(B
(B -Original Message-
(B From: [EMAIL PROTECTED] 
(B [mailto:[EMAIL PROTECTED] On Behalf Of ??
(B Sent: Tuesday, September 07, 2004 7:42 PM
(B To: [EMAIL PROTECTED]
(B Subject: [R] a little question about R
(B 
(B Hello,sir: Here's a little question about R which needs your 
(B help.Thanks in advance. 
(B If I wanna make a sequence just like a,b,c,d (In other 
(B words,a vector consists of 4 characters :a,b,c,d ).How can I 
(B do it in a shortcut manner? Yes,I can do it as following: 
(B c("a","b","c","d") and the result is:[1] "a" "b" "c" "d".
(B But I remember there's a shortcut manner to do the same 
(B thing,something like c("a":"d").But the system said:"Error in 
(B "a":"d" : NA/NaN argument" So I wonder the correct method to 
(B do it(I remember the expression is very similar with 
(B c("a":"d")). Thanks from the bottom of my heart. My best regards!
(B
(B
(B__
(B[EMAIL PROTECTED] mailing list
(Bhttps://stat.ethz.ch/mailman/listinfo/r-help
(BPLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Re: [R] a little question about R

2004-09-07 Thread Roger D. Peng
Try
letters[1:4]
-roger
 wrote:
Hello,sir: Here's a little question about R which needs your help.Thanks in advance. 
If I wanna make a sequence just like a,b,c,d (In other words,a vector consists of 4 characters :a,b,c,d ).How can I do it in a shortcut manner? Yes,I can do it as following: c(a,b,c,d) and the result is:[1] a b c d.
But I remember there's a shortcut manner to do the same thing,something like 
c(a:d).But the system said:Error in a:d : NA/NaN argument So I wonder the correct method to do it(I remember the expression is very similar with
c(a:d)). Thanks from the bottom of my heart. My best regards!

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RE: [R] a little question about R

2004-09-07 Thread Wiener, Matthew
letters[1;4]
LETTERS[1:4] for capitals.

Hope this helps,

Matt Wiener

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, September 07, 2004 8:42 PM
To: [EMAIL PROTECTED]
Subject: [R] a little question about R


Hello,sir: Here's a little question about R which needs your help.Thanks in
advance. 
If I wanna make a sequence just like a,b,c,d (In other words,a vector
consists of 4 characters :a,b,c,d ).How can I do it in a shortcut manner?
Yes,I can do it as following: c(a,b,c,d) and the result is:[1] a
b c d.
But I remember there's a shortcut manner to do the same thing,something like

c(a:d).But the system said:Error in a:d : NA/NaN argument So I
wonder the correct method to do it(I remember the expression is very similar
with
c(a:d)). Thanks from the bottom of my heart. My best regards!

__
[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

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Re: [R] a little question about R

2004-09-07 Thread Alec Stephenson
letters[1:4]



Alec Stephenson   
Department of Statistics
Macquarie University
NSW 2109, Australia 

  $(AÃÏÐÀ [EMAIL PROTECTED] 09/08/04 10:41am 
Hello,sir: Here's a little question about R which needs your help.Thanks in advance. 
If I wanna make a sequence just like a,b,c,d (In other words,a vector consists of 4 
characters :a,b,c,d ).How can I do it in a shortcut manner? Yes,I can do it as 
following: c(a,b,c,d) and the result is:[1] a b c d.
But I remember there's a shortcut manner to do the same thing,something like 
c(a:d).But the system said:Error in a:d : NA/NaN argument So I wonder the 
correct method to do it(I remember the expression is very similar with
c(a:d)). Thanks from the bottom of my heart. My best regards!

__
[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help 
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

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Re: [R] a little question about R

2004-09-07 Thread Kevin Wang
Hi,

On Wed, 8 Sep 2004, [gb2312] ÃÏÐÀ wrote:

 Hello,sir: Here's a little question about R which needs your help.Thanks in advance.
 If I wanna make a sequence just like a,b,c,d (In other words,a vector consists of 4 
 characters :a,b,c,d ).How can I do it in a shortcut manner? Yes,I can do it as 
 following: c(a,b,c,d) and the result is:[1] a b c d.
 But I remember there's a shortcut manner to do the same thing,something like

How about
  letters[1:4]



Ko-Kang Kevin Wang
PhD Student
Centre for Mathematics and its Applications
Building 27, Room 1004
Mathematical Sciences Institute (MSI)
Australian National University
Canberra, ACT 0200
Australia

Homepage: http://wwwmaths.anu.edu.au/~wangk/
Ph (W): +61-2-6125-2431
Ph (H): +61-2-6125-7407
Ph (M): +61-40-451-8301

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